156242713 has 4 divisors (see below), whose sum is σ = 170446608. Its totient is φ = 142038820.

The previous prime is 156242687. The next prime is 156242717. The reversal of 156242713 is 317242651.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 317242651 = 11 ⋅28840241.

It is a de Polignac number, because none of the positive numbers 2^k-156242713 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (156242717) 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, 7101931 + ... + 7101952.

It is an arithmetic number, because the mean of its divisors is an integer number (42611652).

Almost surely, 2^156242713 is an apocalyptic number.

It is an amenable number.

156242713 is a deficient number, since it is larger than the sum of its proper divisors (14203895).

156242713 is a wasteful number, since it uses less digits than its factorization.

156242713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14203894.

The product of its digits is 10080, while the sum is 31.

The square root of 156242713 is about 12499.7085166015. The cubic root of 156242713 is about 538.6002993828.

The spelling of 156242713 in words is "one hundred fifty-six million, two hundred forty-two thousand, seven hundred thirteen".