157605713 has 4 divisors (see below), whose sum is σ = 158405940. Its totient is φ = 156805488.

The previous prime is 157605677. The next prime is 157605719. The reversal of 157605713 is 317506751.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 317506751 = 2749 ⋅115499.

It can be written as a sum of positive squares in 2 ways, for example, as 107578384 + 50027329 = 10372^2 + 7073^2 .

It is a cyclic number.

It is not a de Polignac number, because 157605713 - 2¹² = 157601617 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 (157605719) 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, 399818 + ... + 400211.

It is an arithmetic number, because the mean of its divisors is an integer number (39601485).

Almost surely, 2^157605713 is an apocalyptic number.

It is an amenable number.

157605713 is a deficient number, since it is larger than the sum of its proper divisors (800227).

157605713 is an equidigital number, since it uses as much as digits as its factorization.

157605713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800226.

The product of its (nonzero) digits is 22050, while the sum is 35.

The square root of 157605713 is about 12554.1113982631. Note that the first 3 decimals coincide. The cubic root of 157605713 is about 540.1619461691.

The spelling of 157605713 in words is "one hundred fifty-seven million, six hundred five thousand, seven hundred thirteen".