157539713 has 4 divisors (see below), whose sum is σ = 159891120. Its totient is φ = 155188308.

The previous prime is 157539709. The next prime is 157539751. The reversal of 157539713 is 317935751.

157539713 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 157539713 - 2² = 157539709 is a prime.

It is a super-2 number, since 2×157539713² = 49637522344244738, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157539703) 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, 1175603 + ... + 1175736.

It is an arithmetic number, because the mean of its divisors is an integer number (39972780).

Almost surely, 2^157539713 is an apocalyptic number.

It is an amenable number.

157539713 is a deficient number, since it is larger than the sum of its proper divisors (2351407).

157539713 is an equidigital number, since it uses as much as digits as its factorization.

157539713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2351406.

The product of its digits is 99225, while the sum is 41.

The square root of 157539713 is about 12551.4825020792. The cubic root of 157539713 is about 540.0865350575.

The spelling of 157539713 in words is "one hundred fifty-seven million, five hundred thirty-nine thousand, seven hundred thirteen".