125154666 has 64 divisors (see below), whose sum is σ = 342316800. Its totient is φ = 33006528.

The previous prime is 125154641. The next prime is 125154713. The reversal of 125154666 is 666451521.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 125154666.

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, 7821 + ... + 17648.

It is an arithmetic number, because the mean of its divisors is an integer number (5348700).

Almost surely, 2^125154666 is an apocalyptic number.

125154666 is an abundant number, since it is smaller than the sum of its proper divisors (217162134).

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

125154666 is a wasteful number, since it uses less digits than its factorization.

125154666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25500 (or 25494 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 125154666 is about 11187.2546230074. The cubic root of 125154666 is about 500.2061363373.

The spelling of 125154666 in words is "one hundred twenty-five million, one hundred fifty-four thousand, six hundred sixty-six".