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145134037 = 197736721
BaseRepresentation
bin10001010011010…
…01000111010101
3101010002120110201
420221221013111
5244123242122
622222420501
73411422206
oct1051510725
9333076421
10145134037
1174a19394
1240731731
13240b7139
14153bd5ad
15cb1ca27
hex8a691d5

145134037 has 4 divisors (see below), whose sum is σ = 145870956. Its totient is φ = 144397120.

The previous prime is 145134023. The next prime is 145134053. The reversal of 145134037 is 730431541.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 118570321 + 26563716 = 10889^2 + 5154^2 .

It is a cyclic number.

It is not a de Polignac number, because 145134037 - 215 = 145101269 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145133996 and 145134014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145134337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 368164 + ... + 368557.

It is an arithmetic number, because the mean of its divisors is an integer number (36467739).

Almost surely, 2145134037 is an apocalyptic number.

It is an amenable number.

145134037 is a deficient number, since it is larger than the sum of its proper divisors (736919).

145134037 is an equidigital number, since it uses as much as digits as its factorization.

145134037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736918.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 145134037 is about 12047.1588766813. The cubic root of 145134037 is about 525.5206167414.

Adding to 145134037 its reverse (730431541), we get a palindrome (875565578).

The spelling of 145134037 in words is "one hundred forty-five million, one hundred thirty-four thousand, thirty-seven".

Divisors: 1 197 736721 145134037