86130981 has 12 divisors (see below), whose sum is σ = 125039200. Its totient is φ = 57130920.

The previous prime is 86130953. The next prime is 86130983. The reversal of 86130981 is 18903168.

It is not a de Polignac number, because 86130981 - 2⁵ = 86130949 is a prime.

It is a super-2 number, since 2×86130981² = 14837091776044722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86130983) 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, 22255 + ... + 25836.

Almost surely, 2^86130981 is an apocalyptic number.

It is an amenable number.

86130981 is a deficient number, since it is larger than the sum of its proper divisors (38908219).

86130981 is a wasteful number, since it uses less digits than its factorization.

86130981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48296 (or 48293 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 86130981 is about 9280.6778308483. The cubic root of 86130981 is about 441.6244720262.

The spelling of 86130981 in words is "eighty-six million, one hundred thirty thousand, nine hundred eighty-one".