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147143 = 269547
BaseRepresentation
bin100011111011000111
321110211202
4203323013
514202033
63053115
71151663
oct437307
9243752
10147143
11a0607
127119b
1351c89
143b8a3
152d8e8
hex23ec7

147143 has 4 divisors (see below), whose sum is σ = 147960. Its totient is φ = 146328.

The previous prime is 147139. The next prime is 147151. The reversal of 147143 is 341741.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 341741 = 563607.

It is a cyclic number.

It is not a de Polignac number, because 147143 - 22 = 147139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5 + ... + 542.

It is an arithmetic number, because the mean of its divisors is an integer number (36990).

2147143 is an apocalyptic number.

147143 is a deficient number, since it is larger than the sum of its proper divisors (817).

147143 is an equidigital number, since it uses as much as digits as its factorization.

147143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816.

The product of its digits is 336, while the sum is 20.

The square root of 147143 is about 383.5922314125. The cubic root of 147143 is about 52.7934287430.

Adding to 147143 its reverse (341741), we get a palindrome (488884).

The spelling of 147143 in words is "one hundred forty-seven thousand, one hundred forty-three", and thus it is an iban number.

Divisors: 1 269 547 147143