86145534 has 72 divisors (see below), whose sum is σ = 199279080. Its totient is φ = 26886816.

The previous prime is 86145533. The next prime is 86145541. The reversal of 86145534 is 43554168.

It is a happy number.

86145534 is a `hidden beast` number, since 8 + 614 + 5 + 5 + 34 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86145533) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 790272 + ... + 790380.

It is an arithmetic number, because the mean of its divisors is an integer number (2767765).

Almost surely, 2^86145534 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86145534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99639540).

86145534 is an abundant number, since it is smaller than the sum of its proper divisors (113133546).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86145534 is a wasteful number, since it uses less digits than its factorization.

86145534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246 (or 220 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 86145534 is about 9281.4618460671. The cubic root of 86145534 is about 441.6493434446.

The spelling of 86145534 in words is "eighty-six million, one hundred forty-five thousand, five hundred thirty-four".