125302913409 has 4 divisors (see below), whose sum is σ = 167070551216. Its totient is φ = 83535275604.

The previous prime is 125302913377. The next prime is 125302913419. The reversal of 125302913409 is 904319203521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 125302913409 - 2⁵ = 125302913377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125302913419) 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 in 3 ways as a sum of consecutive naturals, for example, 20883818899 + ... + 20883818904.

It is an arithmetic number, because the mean of its divisors is an integer number (41767637804).

Almost surely, 2^125302913409 is an apocalyptic number.

It is an amenable number.

125302913409 is a deficient number, since it is larger than the sum of its proper divisors (41767637807).

125302913409 is an equidigital number, since it uses as much as digits as its factorization.

125302913409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41767637806.

The product of its (nonzero) digits is 58320, while the sum is 39.

The spelling of 125302913409 in words is "one hundred twenty-five billion, three hundred two million, nine hundred thirteen thousand, four hundred nine".