12172292 has 24 divisors (see below), whose sum is σ = 23590560. Its totient is φ = 5448960.

The previous prime is 12172283. The next prime is 12172309. The reversal of 12172292 is 29227121.

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, 884 + ... + 5012.

It is an arithmetic number, because the mean of its divisors is an integer number (982940).

Almost surely, 2^12172292 is an apocalyptic number.

It is an amenable number.

12172292 is a deficient number, since it is larger than the sum of its proper divisors (11418268).

12172292 is a wasteful number, since it uses less digits than its factorization.

12172292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4211 (or 4209 counting only the distinct ones).

The product of its digits is 1008, while the sum is 26.

The square root of 12172292 is about 3488.8811960283. The cubic root of 12172292 is about 230.0333411023.

The spelling of 12172292 in words is "twelve million, one hundred seventy-two thousand, two hundred ninety-two".