125021112545 has 16 divisors (see below), whose sum is σ = 180481607040. Its totient is φ = 81216722304.

The previous prime is 125021112529. The next prime is 125021112569. The reversal of 125021112545 is 545211120521.

It is a cyclic number.

It is not a de Polignac number, because 125021112545 - 2⁴ = 125021112529 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94000172 + ... + 94001501.

It is an arithmetic number, because the mean of its divisors is an integer number (11280100440).

Almost surely, 2^125021112545 is an apocalyptic number.

It is an amenable number.

125021112545 is a deficient number, since it is larger than the sum of its proper divisors (55460494495).

125021112545 is a wasteful number, since it uses less digits than its factorization.

125021112545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188001704.

The product of its (nonzero) digits is 4000, while the sum is 29.

The spelling of 125021112545 in words is "one hundred twenty-five billion, twenty-one million, one hundred twelve thousand, five hundred forty-five".