125139604379 has 4 divisors (see below), whose sum is σ = 125165772576. Its totient is φ = 125113436184.

The previous prime is 125139604357. The next prime is 125139604397. The reversal of 125139604379 is 973406931521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 973406931521 = 1039 ⋅936869039.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125139604379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125139604309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13076924 + ... + 13086489.

It is an arithmetic number, because the mean of its divisors is an integer number (31291443144).

Almost surely, 2^125139604379 is an apocalyptic number.

125139604379 is a deficient number, since it is larger than the sum of its proper divisors (26168197).

125139604379 is an equidigital number, since it uses as much as digits as its factorization.

125139604379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26168196.

The product of its (nonzero) digits is 1224720, while the sum is 50.

The spelling of 125139604379 in words is "one hundred twenty-five billion, one hundred thirty-nine million, six hundred four thousand, three hundred seventy-nine".