156120713 has 6 divisors (see below), whose sum is σ = 181609866. Its totient is φ = 133817712.

The previous prime is 156120709. The next prime is 156120721. The reversal of 156120713 is 317021651.

It can be written as a sum of positive squares in only one way, i.e., 155950144 + 170569 = 12488^2 + 413^2 .

It is not a de Polignac number, because 156120713 - 2² = 156120709 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (156120703) 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 5 ways as a sum of consecutive naturals, for example, 1593020 + ... + 1593117.

It is an arithmetic number, because the mean of its divisors is an integer number (30268311).

Almost surely, 2^156120713 is an apocalyptic number.

It is an amenable number.

156120713 is a deficient number, since it is larger than the sum of its proper divisors (25489153).

156120713 is an equidigital number, since it uses as much as digits as its factorization.

156120713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3186151 (or 3186144 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 156120713 is about 12494.8274497890. The cubic root of 156120713 is about 538.4600766371.

The spelling of 156120713 in words is "one hundred fifty-six million, one hundred twenty thousand, seven hundred thirteen".