86511140 has 12 divisors (see below), whose sum is σ = 181673436. Its totient is φ = 34604448.

The previous prime is 86511133. The next prime is 86511151. The reversal of 86511140 is 4111568.

It can be written as a sum of positive squares in 2 ways, for example, as 49252324 + 37258816 = 7018^2 + 6104^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2162759 + ... + 2162798.

It is an arithmetic number, because the mean of its divisors is an integer number (15139453).

Almost surely, 2^86511140 is an apocalyptic number.

It is an amenable number.

86511140 is an abundant number, since it is smaller than the sum of its proper divisors (95162296).

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

86511140 is a wasteful number, since it uses less digits than its factorization.

86511140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4325566 (or 4325564 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 26.

The square root of 86511140 is about 9301.1364896984. The cubic root of 86511140 is about 442.2732556816.

The spelling of 86511140 in words is "eighty-six million, five hundred eleven thousand, one hundred forty".