125940666 has 8 divisors (see below), whose sum is σ = 251881344. Its totient is φ = 41980220.

The previous prime is 125940623. The next prime is 125940673. The reversal of 125940666 is 666049521.

It is a sphenic number, since it is the product of 3 distinct primes.

125940666 is an admirable number.

It is a super-2 number, since 2×125940666² = 31722102705047112, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10495050 + ... + 10495061.

It is an arithmetic number, because the mean of its divisors is an integer number (31485168).

Almost surely, 2^125940666 is an apocalyptic number.

125940666 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

125940666 is a wasteful number, since it uses less digits than its factorization.

125940666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20990116.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 125940666 is about 11222.3289026833. The cubic root of 125940666 is about 501.2510882786.

The spelling of 125940666 in words is "one hundred twenty-five million, nine hundred forty thousand, six hundred sixty-six".