125001265139 has 4 divisors (see below), whose sum is σ = 125629412400. Its totient is φ = 124373117880.

The previous prime is 125001265111. The next prime is 125001265141. The reversal of 125001265139 is 931562100521.

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

It is a cyclic number.

It is not a de Polignac number, because 125001265139 - 2²⁰ = 125000216563 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125001265099 and 125001265108.

It is not an unprimeable number, because it can be changed into a prime (125001265199) 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, 314073332 + ... + 314073729.

It is an arithmetic number, because the mean of its divisors is an integer number (31407353100).

Almost surely, 2^125001265139 is an apocalyptic number.

125001265139 is a deficient number, since it is larger than the sum of its proper divisors (628147261).

125001265139 is an equidigital number, since it uses as much as digits as its factorization.

125001265139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628147260.

The product of its (nonzero) digits is 16200, while the sum is 35.

The spelling of 125001265139 in words is "one hundred twenty-five billion, one million, two hundred sixty-five thousand, one hundred thirty-nine".