86154861 has 32 divisors (see below), whose sum is σ = 131846400. Its totient is φ = 49572864.

The previous prime is 86154851. The next prime is 86154863. The reversal of 86154861 is 16845168.

It is not a de Polignac number, because 86154861 - 2⁵ = 86154829 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86154863) 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, 131611 + ... + 132263.

It is an arithmetic number, because the mean of its divisors is an integer number (4120200).

Almost surely, 2^86154861 is an apocalyptic number.

It is an amenable number.

86154861 is a deficient number, since it is larger than the sum of its proper divisors (45691539).

86154861 is a wasteful number, since it uses less digits than its factorization.

86154861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 885.

The product of its digits is 46080, while the sum is 39.

The square root of 86154861 is about 9281.9642856456. The cubic root of 86154861 is about 441.6652820336.

The spelling of 86154861 in words is "eighty-six million, one hundred fifty-four thousand, eight hundred sixty-one".