125720688 has 40 divisors (see below), whose sum is σ = 328438800. Its totient is φ = 41434624.

The previous prime is 125720677. The next prime is 125720689. The reversal of 125720688 is 886027521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125720689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10443 + ... + 18986.

It is an arithmetic number, because the mean of its divisors is an integer number (8210970).

Almost surely, 2^125720688 is an apocalyptic number.

It is an amenable number.

125720688 is an abundant number, since it is smaller than the sum of its proper divisors (202718112).

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

125720688 is a wasteful number, since it uses less digits than its factorization.

125720688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29529 (or 29523 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 125720688 is about 11212.5237123495. The cubic root of 125720688 is about 500.9590765016.

It can be divided in two parts, 1257 and 20688, that added together give a triangular number (21945 = T₂₀₉).

The spelling of 125720688 in words is "one hundred twenty-five million, seven hundred twenty thousand, six hundred eighty-eight".