125253966 has 64 divisors (see below), whose sum is σ = 273208320. Its totient is φ = 38154240.

The previous prime is 125253959. The next prime is 125254007. The reversal of 125253966 is 669352521.

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 31 ways as a sum of consecutive naturals, for example, 519606 + ... + 519846.

It is an arithmetic number, because the mean of its divisors is an integer number (4268880).

Almost surely, 2^125253966 is an apocalyptic number.

125253966 is an abundant number, since it is smaller than the sum of its proper divisors (147954354).

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

125253966 is a wasteful number, since it uses less digits than its factorization.

125253966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409.

The product of its digits is 97200, while the sum is 39.

The square root of 125253966 is about 11191.6918292097. The cubic root of 125253966 is about 500.3383922630.

The spelling of 125253966 in words is "one hundred twenty-five million, two hundred fifty-three thousand, nine hundred sixty-six".