855190531 has 12 divisors (see below), whose sum is σ = 966301488. Its totient is φ = 755081184.

The previous prime is 855190519. The next prime is 855190549. The reversal of 855190531 is 135091558.

It is not a de Polignac number, because 855190531 - 2²⁵ = 821636099 is a prime.

It is a super-2 number, since 2×855190531² = 1462701688624123922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (855190561) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106120 + ... + 113893.

It is an arithmetic number, because the mean of its divisors is an integer number (80525124).

Almost surely, 2^855190531 is an apocalyptic number.

855190531 is a deficient number, since it is larger than the sum of its proper divisors (111110957).

855190531 is a wasteful number, since it uses less digits than its factorization.

855190531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220062 (or 220049 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 37.

The square root of 855190531 is about 29243.6408642973. The cubic root of 855190531 is about 949.1924923846.

The spelling of 855190531 in words is "eight hundred fifty-five million, one hundred ninety thousand, five hundred thirty-one".