125215975 has 12 divisors (see below), whose sum is σ = 160277440. Its totient is φ = 96940800.

The previous prime is 125215949. The next prime is 125216011. The reversal of 125215975 is 579512521.

It is not a de Polignac number, because 125215975 - 2⁹ = 125215463 is a prime.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80010 + ... + 81559.

Almost surely, 2^125215975 is an apocalyptic number.

125215975 is a deficient number, since it is larger than the sum of its proper divisors (35061465).

125215975 is a wasteful number, since it uses less digits than its factorization.

125215975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161610 (or 161605 counting only the distinct ones).

The product of its digits is 31500, while the sum is 37.

The square root of 125215975 is about 11189.9944146545. The cubic root of 125215975 is about 500.2878009761.

It can be divided in two parts, 12521 and 5975, that added together give a square (18496 = 136²).

The spelling of 125215975 in words is "one hundred twenty-five million, two hundred fifteen thousand, nine hundred seventy-five".