157085 has 8 divisors (see below), whose sum is σ = 191160. Its totient is φ = 123904.

The previous prime is 157081. The next prime is 157103. The reversal of 157085 is 580751.

It can be written as a sum of positive squares in 4 ways, for example, as 1849 + 155236 = 43^2 + 394^2 .

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 157085 - 2² = 157081 is a prime.

It is an Ulam number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 269 + ... + 621.

It is an arithmetic number, because the mean of its divisors is an integer number (23895).

2¹⁵⁷⁰⁸⁵ is an apocalyptic number.

It is an amenable number.

157085 is a deficient number, since it is larger than the sum of its proper divisors (34075).

157085 is an equidigital number, since it uses as much as digits as its factorization.

157085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447.

The product of its (nonzero) digits is 1400, while the sum is 26.

The square root of 157085 is about 396.3395009332. The cubic root of 157085 is about 53.9566410061.

The spelling of 157085 in words is "one hundred fifty-seven thousand, eighty-five".