12157882 has 16 divisors (see below), whose sum is σ = 20272032. Its totient is φ = 5421520.

The previous prime is 12157879. The next prime is 12157889. The reversal of 12157882 is 28875121.

It is not an unprimeable number, because it can be changed into a prime (12157889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4048 + ... + 6379.

It is an arithmetic number, because the mean of its divisors is an integer number (1267002).

Almost surely, 2^12157882 is an apocalyptic number.

12157882 is a deficient number, since it is larger than the sum of its proper divisors (8114150).

12157882 is a wasteful number, since it uses less digits than its factorization.

12157882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10493.

The product of its digits is 8960, while the sum is 34.

The square root of 12157882 is about 3486.8154525297. The cubic root of 12157882 is about 229.9425313255.

The spelling of 12157882 in words is "twelve million, one hundred fifty-seven thousand, eight hundred eighty-two".