86514231 has 4 divisors (see below), whose sum is σ = 115352312. Its totient is φ = 57676152.

The previous prime is 86514217. The next prime is 86514257. The reversal of 86514231 is 13241568.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 86514231 - 2¹⁵ = 86481463 is a prime.

It is a super-2 number, since 2×86514231² = 14969424331042722, 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 (86514331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14419036 + ... + 14419041.

It is an arithmetic number, because the mean of its divisors is an integer number (28838078).

Almost surely, 2^86514231 is an apocalyptic number.

86514231 is a deficient number, since it is larger than the sum of its proper divisors (28838081).

86514231 is a wasteful number, since it uses less digits than its factorization.

86514231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28838080.

The product of its digits is 5760, while the sum is 30.

The square root of 86514231 is about 9301.3026507044. The cubic root of 86514231 is about 442.2785230200.

Adding to 86514231 its reverse (13241568), we get a palindrome (99755799).

The spelling of 86514231 in words is "eighty-six million, five hundred fourteen thousand, two hundred thirty-one".