157185085 has 8 divisors (see below), whose sum is σ = 190353240. Its totient is φ = 124593984.

The previous prime is 157185073. The next prime is 157185109. The reversal of 157185085 is 580581751.

It can be written as a sum of positive squares in 4 ways, for example, as 48149721 + 109035364 = 6939^2 + 10442^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 157185085 - 2¹⁷ = 157054013 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143662 + ... + 144751.

It is an arithmetic number, because the mean of its divisors is an integer number (23794155).

Almost surely, 2^157185085 is an apocalyptic number.

It is an amenable number.

157185085 is a deficient number, since it is larger than the sum of its proper divisors (33168155).

157185085 is a wasteful number, since it uses less digits than its factorization.

157185085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288527.

The product of its (nonzero) digits is 56000, while the sum is 40.

The square root of 157185085 is about 12537.3476062523. The cubic root of 157185085 is about 539.6809786896.

The spelling of 157185085 in words is "one hundred fifty-seven million, one hundred eighty-five thousand, eighty-five".