86132591 has 4 divisors (see below), whose sum is σ = 91199232. Its totient is φ = 81065952.

The previous prime is 86132561. The next prime is 86132593. The reversal of 86132591 is 19523168.

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

It is a cyclic number.

It is not a de Polignac number, because 86132591 - 2¹⁴ = 86116207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86132593) 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, 2533295 + ... + 2533328.

It is an arithmetic number, because the mean of its divisors is an integer number (22799808).

Almost surely, 2^86132591 is an apocalyptic number.

86132591 is a deficient number, since it is larger than the sum of its proper divisors (5066641).

86132591 is a wasteful number, since it uses less digits than its factorization.

86132591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5066640.

The product of its digits is 12960, while the sum is 35.

The square root of 86132591 is about 9280.7645697970. The cubic root of 86132591 is about 441.6272236918.

The spelling of 86132591 in words is "eighty-six million, one hundred thirty-two thousand, five hundred ninety-one".