157050665 has 4 divisors (see below), whose sum is σ = 188460804. Its totient is φ = 125640528.

The previous prime is 157050659. The next prime is 157050697. The reversal of 157050665 is 566050751.

157050665 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.

It can be written as a sum of positive squares in 2 ways, for example, as 17172736 + 139877929 = 4144^2 + 11827^2 .

It is a cyclic number.

It is not a de Polignac number, because 157050665 - 2¹⁴ = 157034281 is a prime.

It is a super-2 number, since 2×157050665² = 49329822753884450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15705062 + ... + 15705071.

It is an arithmetic number, because the mean of its divisors is an integer number (47115201).

Almost surely, 2^157050665 is an apocalyptic number.

It is an amenable number.

157050665 is a deficient number, since it is larger than the sum of its proper divisors (31410139).

157050665 is an equidigital number, since it uses as much as digits as its factorization.

157050665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31410138.

The product of its (nonzero) digits is 31500, while the sum is 35.

The square root of 157050665 is about 12531.9856766595. The cubic root of 157050665 is about 539.5270951195.

The spelling of 157050665 in words is "one hundred fifty-seven million, fifty thousand, six hundred sixty-five".