86128125 has 24 divisors (see below), whose sum is σ = 143553312. Its totient is φ = 45930000.

The previous prime is 86128099. The next prime is 86128139. The reversal of 86128125 is 52182168.

It is not a de Polignac number, because 86128125 - 2⁵ = 86128093 is a prime.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4782 + ... + 13968.

It is an arithmetic number, because the mean of its divisors is an integer number (5981388).

Almost surely, 2^86128125 is an apocalyptic number.

It is an amenable number.

86128125 is a deficient number, since it is larger than the sum of its proper divisors (57425187).

86128125 is an frugal number, since it uses more digits than its factorization.

86128125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9215 (or 9195 counting only the distinct ones).

The product of its digits is 7680, while the sum is 33.

The square root of 86128125 is about 9280.5239615013. The cubic root of 86128125 is about 441.6195907263.

The spelling of 86128125 in words is "eighty-six million, one hundred twenty-eight thousand, one hundred twenty-five".