125345251542 has 24 divisors (see below), whose sum is σ = 291619565496. Its totient is φ = 35812928928.

The previous prime is 125345251501. The next prime is 125345251567. The reversal of 125345251542 is 245152543521.

It is a super-2 number, since 2×125345251542² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 125345251542.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 213171903 + ... + 213172490.

It is an arithmetic number, because the mean of its divisors is an integer number (12150815229).

Almost surely, 2^125345251542 is an apocalyptic number.

125345251542 is an abundant number, since it is smaller than the sum of its proper divisors (166274313954).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125345251542 is a wasteful number, since it uses less digits than its factorization.

125345251542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426344412 (or 426344405 counting only the distinct ones).

The product of its digits is 240000, while the sum is 39.

The spelling of 125345251542 in words is "one hundred twenty-five billion, three hundred forty-five million, two hundred fifty-one thousand, five hundred forty-two".