172051086 has 16 divisors (see below), whose sum is σ = 359063424. Its totient is φ = 54856824.

The previous prime is 172051079. The next prime is 172051123. The reversal of 172051086 is 680150271.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 623236 + ... + 623511.

It is an arithmetic number, because the mean of its divisors is an integer number (22441464).

Almost surely, 2^172051086 is an apocalyptic number.

172051086 is an abundant number, since it is smaller than the sum of its proper divisors (187012338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

172051086 is a wasteful number, since it uses less digits than its factorization.

172051086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1246775.

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 172051086 is about 13116.8245394989. The cubic root of 172051086 is about 556.1848302054.

The spelling of 172051086 in words is "one hundred seventy-two million, fifty-one thousand, eighty-six".