125242875406 has 16 divisors (see below), whose sum is σ = 206636634288. Its totient is φ = 56928578520.

The previous prime is 125242875403. The next prime is 125242875419. The reversal of 125242875406 is 604578242521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125242875403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23521545 + ... + 23526868.

It is an arithmetic number, because the mean of its divisors is an integer number (12914789643).

Almost surely, 2^125242875406 is an apocalyptic number.

125242875406 is a deficient number, since it is larger than the sum of its proper divisors (81393758882).

125242875406 is an equidigital number, since it uses as much as digits as its factorization.

125242875406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47048448 (or 47048426 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 46.

The spelling of 125242875406 in words is "one hundred twenty-five billion, two hundred forty-two million, eight hundred seventy-five thousand, four hundred six".