125421888 has 56 divisors (see below), whose sum is σ = 349321120. Its totient is φ = 39605760.

The previous prime is 125421887. The next prime is 125421929. The reversal of 125421888 is 888124521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125421887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13543 + ... + 20838.

Almost surely, 2^125421888 is an apocalyptic number.

It is an amenable number.

125421888 is an abundant number, since it is smaller than the sum of its proper divisors (223899232).

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

125421888 is a wasteful number, since it uses less digits than its factorization.

125421888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34415 (or 34405 counting only the distinct ones).

The product of its digits is 40960, while the sum is 39.

The square root of 125421888 is about 11199.1913993824. The cubic root of 125421888 is about 500.5618856658.

The spelling of 125421888 in words is "one hundred twenty-five million, four hundred twenty-one thousand, eight hundred eighty-eight".