1912172 has 12 divisors (see below), whose sum is σ = 3393936. Its totient is φ = 942480.

The previous prime is 1912159. The next prime is 1912193. The reversal of 1912172 is 2712191.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3083 + ... + 3650.

It is an arithmetic number, because the mean of its divisors is an integer number (282828).

2^1912172 is an apocalyptic number.

It is an amenable number.

1912172 is a deficient number, since it is larger than the sum of its proper divisors (1481764).

1912172 is a wasteful number, since it uses less digits than its factorization.

1912172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6808 (or 6806 counting only the distinct ones).

The product of its digits is 252, while the sum is 23.

The square root of 1912172 is about 1382.8130748586. The cubic root of 1912172 is about 124.1201575483.

The spelling of 1912172 in words is "one million, nine hundred twelve thousand, one hundred seventy-two".