156532313 has 6 divisors (see below), whose sum is σ = 182088666. Its totient is φ = 134170512.

The previous prime is 156532309. The next prime is 156532339. The reversal of 156532313 is 313235651.

It can be written as a sum of positive squares in only one way, i.e., 155950144 + 582169 = 12488^2 + 763^2 .

It is not a de Polignac number, because 156532313 - 2² = 156532309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (156532813) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1597220 + ... + 1597317.

It is an arithmetic number, because the mean of its divisors is an integer number (30348111).

Almost surely, 2^156532313 is an apocalyptic number.

It is an amenable number.

156532313 is a deficient number, since it is larger than the sum of its proper divisors (25556353).

156532313 is an equidigital number, since it uses as much as digits as its factorization.

156532313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3194551 (or 3194544 counting only the distinct ones).

The product of its digits is 8100, while the sum is 29.

The square root of 156532313 is about 12511.2874237626. The cubic root of 156532313 is about 538.9328639606.

Adding to 156532313 its reverse (313235651), we get a palindrome (469767964).

The spelling of 156532313 in words is "one hundred fifty-six million, five hundred thirty-two thousand, three hundred thirteen".