125690045 has 16 divisors (see below), whose sum is σ = 163416960. Its totient is φ = 92253504.

The previous prime is 125690029. The next prime is 125690053. The reversal of 125690045 is 540096521.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 125690045 - 2⁴ = 125690029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125689993 and 125690020.

It is a congruent 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, 5066 + ... + 16644.

It is an arithmetic number, because the mean of its divisors is an integer number (10213560).

Almost surely, 2^125690045 is an apocalyptic number.

It is an amenable number.

125690045 is a deficient number, since it is larger than the sum of its proper divisors (37726915).

125690045 is a wasteful number, since it uses less digits than its factorization.

125690045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11764.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 125690045 is about 11211.1571659664. The cubic root of 125690045 is about 500.9183721524.

The spelling of 125690045 in words is "one hundred twenty-five million, six hundred ninety thousand, forty-five".