86157331 has 8 divisors (see below), whose sum is σ = 93006144. Its totient is φ = 79340160.

The previous prime is 86157329. The next prime is 86157341. The reversal of 86157331 is 13375168.

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 86157331 - 2¹ = 86157329 is a prime.

It is a super-2 number, since 2×86157331² = 14846171370087122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86157311) 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, 2086 + ... + 13291.

It is an arithmetic number, because the mean of its divisors is an integer number (11625768).

Almost surely, 2^86157331 is an apocalyptic number.

86157331 is a deficient number, since it is larger than the sum of its proper divisors (6848813).

86157331 is a wasteful number, since it uses less digits than its factorization.

86157331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15821.

The product of its digits is 15120, while the sum is 34.

The square root of 86157331 is about 9282.0973384252. The cubic root of 86157331 is about 441.6695027388.

The spelling of 86157331 in words is "eighty-six million, one hundred fifty-seven thousand, three hundred thirty-one".