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145129835 = 529025967
BaseRepresentation
bin10001010011010…
…00000101101011
3101010002100201002
420221220011223
5244123123320
622222345215
73411404024
oct1051500553
9333070632
10145129835
1174a16214
124072b20b
13240b5256
14153bbc4b
15cb1b675
hex8a6816b

145129835 has 4 divisors (see below), whose sum is σ = 174155808. Its totient is φ = 116103864.

The previous prime is 145129823. The next prime is 145129837. The reversal of 145129835 is 538921541.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 145129835 - 24 = 145129819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145129837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14512979 + ... + 14512988.

It is an arithmetic number, because the mean of its divisors is an integer number (43538952).

Almost surely, 2145129835 is an apocalyptic number.

145129835 is a deficient number, since it is larger than the sum of its proper divisors (29025973).

145129835 is an equidigital number, since it uses as much as digits as its factorization.

145129835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29025972.

The product of its digits is 43200, while the sum is 38.

The square root of 145129835 is about 12046.9844774533. The cubic root of 145129835 is about 525.5155449724.

The spelling of 145129835 in words is "one hundred forty-five million, one hundred twenty-nine thousand, eight hundred thirty-five".

Divisors: 1 5 29025967 145129835