125173045 has 16 divisors (see below), whose sum is σ = 158955840. Its totient is φ = 94362624.

The previous prime is 125173033. The next prime is 125173073. The reversal of 125173045 is 540371521.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 125173045 - 2⁹ = 125172533 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14922 + ... + 21748.

It is an arithmetic number, because the mean of its divisors is an integer number (9934740).

Almost surely, 2^125173045 is an apocalyptic number.

It is an amenable number.

125173045 is a deficient number, since it is larger than the sum of its proper divisors (33782795).

125173045 is a wasteful number, since it uses less digits than its factorization.

125173045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7044.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 125173045 is about 11188.0760186906. The cubic root of 125173045 is about 500.2306202789.

The spelling of 125173045 in words is "one hundred twenty-five million, one hundred seventy-three thousand, forty-five".