12157892 has 12 divisors (see below), whose sum is σ = 22201536. Its totient is φ = 5814600.

The previous prime is 12157889. The next prime is 12157897. The reversal of 12157892 is 29875121.

It is not an unprimeable number, because it can be changed into a prime (12157897) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 65984 + ... + 66167.

It is an arithmetic number, because the mean of its divisors is an integer number (1850128).

Almost surely, 2^12157892 is an apocalyptic number.

It is an amenable number.

12157892 is a deficient number, since it is larger than the sum of its proper divisors (10043644).

12157892 is a wasteful number, since it uses less digits than its factorization.

12157892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132178 (or 132176 counting only the distinct ones).

The product of its digits is 10080, while the sum is 35.

The square root of 12157892 is about 3486.8168865026. The cubic root of 12157892 is about 229.9425943690.

The spelling of 12157892 in words is "twelve million, one hundred fifty-seven thousand, eight hundred ninety-two".