12157382 has 4 divisors (see below), whose sum is σ = 18236076. Its totient is φ = 6078690.

The previous prime is 12157367. The next prime is 12157391. The reversal of 12157382 is 28375121.

It is a semiprime because it is the product of two primes.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 3039344 + ... + 3039347.

It is an arithmetic number, because the mean of its divisors is an integer number (4559019).

Almost surely, 2^12157382 is an apocalyptic number.

12157382 is a deficient number, since it is larger than the sum of its proper divisors (6078694).

12157382 is an equidigital number, since it uses as much as digits as its factorization.

12157382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6078693.

The product of its digits is 3360, while the sum is 29.

The square root of 12157382 is about 3486.7437531313. The cubic root of 12157382 is about 229.9393791087.

The spelling of 12157382 in words is "twelve million, one hundred fifty-seven thousand, three hundred eighty-two".