86155751 has 12 divisors (see below), whose sum is σ = 94939656. Its totient is φ = 78125520.

The previous prime is 86155739. The next prime is 86155757. The reversal of 86155751 is 15755168.

It is a happy number.

It is not a de Polignac number, because 86155751 - 2¹⁰ = 86154727 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 (86155757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70421 + ... + 71633.

It is an arithmetic number, because the mean of its divisors is an integer number (7911638).

Almost surely, 2^86155751 is an apocalyptic number.

86155751 is a deficient number, since it is larger than the sum of its proper divisors (8783905).

86155751 is a wasteful number, since it uses less digits than its factorization.

86155751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1822 (or 1811 counting only the distinct ones).

The product of its digits is 42000, while the sum is 38.

The square root of 86155751 is about 9282.0122279601. The cubic root of 86155751 is about 441.6668028638. Note that the first 3 decimals are identical.

The spelling of 86155751 in words is "eighty-six million, one hundred fifty-five thousand, seven hundred fifty-one".