156272013 has 6 divisors (see below), whose sum is σ = 225726254. Its totient is φ = 104181336.

The previous prime is 156271967. The next prime is 156272047. The reversal of 156272013 is 310272651.

It is a happy number.

156272013 is a `hidden beast` number, since 1 + 5 + 627 + 20 + 13 = 666.

It can be written as a sum of positive squares in only one way, i.e., 127306089 + 28965924 = 11283^2 + 5382^2 .

It is not a de Polignac number, because 156272013 - 2⁶ = 156271949 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 (156272513) 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 5 ways as a sum of consecutive naturals, for example, 8681770 + ... + 8681787.

Almost surely, 2^156272013 is an apocalyptic number.

It is an amenable number.

156272013 is a deficient number, since it is larger than the sum of its proper divisors (69454241).

156272013 is a wasteful number, since it uses less digits than its factorization.

156272013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17363563 (or 17363560 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 156272013 is about 12500.8804889896. The cubic root of 156272013 is about 538.6339649580.

The spelling of 156272013 in words is "one hundred fifty-six million, two hundred seventy-two thousand, thirteen".