86331131 has 8 divisors (see below), whose sum is σ = 87476544. Its totient is φ = 85192200.

The previous prime is 86331103. The next prime is 86331137. The reversal of 86331131 is 13113368.

It is a happy number.

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 86331131 - 2²² = 82136827 is a prime.

It is a super-2 number, since 2×86331131² = 14906128359478322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 86331131.

It is not an unprimeable number, because it can be changed into a prime (86331137) 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, 28856 + ... + 31706.

It is an arithmetic number, because the mean of its divisors is an integer number (10934568).

Almost surely, 2^86331131 is an apocalyptic number.

86331131 is a deficient number, since it is larger than the sum of its proper divisors (1145413).

86331131 is a wasteful number, since it uses less digits than its factorization.

86331131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3241.

The product of its digits is 1296, while the sum is 26.

The square root of 86331131 is about 9291.4547300194. The cubic root of 86331131 is about 441.9662877040.

Adding to 86331131 its reverse (13113368), we get a palindrome (99444499).

The spelling of 86331131 in words is "eighty-six million, three hundred thirty-one thousand, one hundred thirty-one".