12382157 has 2 divisors, whose sum is σ = 12382158. Its totient is φ = 12382156.

The previous prime is 12382141. The next prime is 12382163. The reversal of 12382157 is 75128321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6482116 + 5900041 = 2546^2 + 2429^2 .

It is a cyclic number.

It is not a de Polignac number, because 12382157 - 2⁴ = 12382141 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12382127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6191078 + 6191079.

It is an arithmetic number, because the mean of its divisors is an integer number (6191079).

Almost surely, 2^12382157 is an apocalyptic number.

It is an amenable number.

12382157 is a deficient number, since it is larger than the sum of its proper divisors (1).

12382157 is an equidigital number, since it uses as much as digits as its factorization.

12382157 is an odious number, because the sum of its binary digits is odd.

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

The square root of 12382157 is about 3518.8289245145. The cubic root of 12382157 is about 231.3478327710.

The spelling of 12382157 in words is "twelve million, three hundred eighty-two thousand, one hundred fifty-seven".