86145213 has 32 divisors (see below), whose sum is σ = 147087360. Its totient is φ = 43536960.

The previous prime is 86145203. The next prime is 86145229. The reversal of 86145213 is 31254168.

It is not a de Polignac number, because 86145213 - 2⁴ = 86145197 is a prime.

It is a super-3 number, since 3×86145213³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86145203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3508 + ... + 13586.

It is an arithmetic number, because the mean of its divisors is an integer number (4596480).

Almost surely, 2^86145213 is an apocalyptic number.

It is an amenable number.

86145213 is a deficient number, since it is larger than the sum of its proper divisors (60942147).

86145213 is a wasteful number, since it uses less digits than its factorization.

86145213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10137.

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

The square root of 86145213 is about 9281.4445535164. Note that the first 3 decimals coincide. The cubic root of 86145213 is about 441.6487948783.

The spelling of 86145213 in words is "eighty-six million, one hundred forty-five thousand, two hundred thirteen".