125641668 has 12 divisors (see below), whose sum is σ = 293163920. Its totient is φ = 41880552.

The previous prime is 125641619. The next prime is 125641673. The reversal of 125641668 is 866146521.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

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, 5235058 + ... + 5235081.

Almost surely, 2^125641668 is an apocalyptic number.

It is an amenable number.

125641668 is an abundant number, since it is smaller than the sum of its proper divisors (167522252).

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

125641668 is a wasteful number, since it uses less digits than its factorization.

125641668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10470146 (or 10470144 counting only the distinct ones).

The product of its digits is 69120, while the sum is 39.

The square root of 125641668 is about 11208.9994201088. Note that the first 3 decimals coincide. The cubic root of 125641668 is about 500.8540975374.

It can be divided in two parts, 1256 and 41668, that added together give a palindrome (42924).

The spelling of 125641668 in words is "one hundred twenty-five million, six hundred forty-one thousand, six hundred sixty-eight".