86121105 has 16 divisors (see below), whose sum is σ = 157478784. Its totient is φ = 39369600.

The previous prime is 86121073. The next prime is 86121107. The reversal of 86121105 is 50112168.

It is not a de Polignac number, because 86121105 - 2⁵ = 86121073 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (86121107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 409996 + ... + 410205.

It is an arithmetic number, because the mean of its divisors is an integer number (9842424).

Almost surely, 2^86121105 is an apocalyptic number.

It is an amenable number.

86121105 is a deficient number, since it is larger than the sum of its proper divisors (71357679).

86121105 is a wasteful number, since it uses less digits than its factorization.

86121105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820216.

The product of its (nonzero) digits is 480, while the sum is 24.

The square root of 86121105 is about 9280.1457423900. The cubic root of 86121105 is about 441.6075921147.

The spelling of 86121105 in words is "eighty-six million, one hundred twenty-one thousand, one hundred five".