6172158 has 16 divisors (see below), whose sum is σ = 12422016. Its totient is φ = 2044440.

The previous prime is 6172147. The next prime is 6172183. The reversal of 6172158 is 8512716.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2178 + ... + 4133.

It is an arithmetic number, because the mean of its divisors is an integer number (776376).

Almost surely, 2^6172158 is an apocalyptic number.

6172158 is an abundant number, since it is smaller than the sum of its proper divisors (6249858).

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

6172158 is a wasteful number, since it uses less digits than its factorization.

6172158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6479.

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

The square root of 6172158 is about 2484.3828207424. The cubic root of 6172158 is about 183.4336516165.

It can be divided in two parts, 617 and 2158, that added together give a triangular number (2775 = T₇₄).

The spelling of 6172158 in words is "six million, one hundred seventy-two thousand, one hundred fifty-eight".