985175157 has 8 divisors (see below), whose sum is σ = 1321934176. Its totient is φ = 652599792.

The previous prime is 985175117. The next prime is 985175161. The reversal of 985175157 is 751571589.

It is a happy number.

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

It is not a de Polignac number, because 985175157 - 2⁷ = 985175029 is a prime.

It is the 31388-th Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (985175117) by changing a digit.

It is a nontrivial repunit in base 31387.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1045363 + ... + 1046304.

It is an arithmetic number, because the mean of its divisors is an integer number (165241772).

Almost surely, 2^985175157 is an apocalyptic number.

It is an amenable number.

985175157 is a deficient number, since it is larger than the sum of its proper divisors (336759019).

985175157 is a wasteful number, since it uses less digits than its factorization.

985175157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2091827.

The product of its digits is 441000, while the sum is 48.

The square root of 985175157 is about 31387.5000119474. The cubic root of 985175157 is about 995.0337629849.

The spelling of 985175157 in words is "nine hundred eighty-five million, one hundred seventy-five thousand, one hundred fifty-seven".