125131379 has 2 divisors, whose sum is σ = 125131380. Its totient is φ = 125131378.

The previous prime is 125131367. The next prime is 125131387. The reversal of 125131379 is 973131521.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125131379 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (125131309) 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, 62565689 + 62565690.

It is an arithmetic number, because the mean of its divisors is an integer number (62565690).

Almost surely, 2^125131379 is an apocalyptic number.

125131379 is a deficient number, since it is larger than the sum of its proper divisors (1).

125131379 is an equidigital number, since it uses as much as digits as its factorization.

125131379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5670, while the sum is 32.

The square root of 125131379 is about 11186.2137919852. The cubic root of 125131379 is about 500.1751106654.

The spelling of 125131379 in words is "one hundred twenty-five million, one hundred thirty-one thousand, three hundred seventy-nine".