125722660 has 24 divisors (see below), whose sum is σ = 301734720. Its totient is φ = 43104864.

The previous prime is 125722643. The next prime is 125722661. The reversal of 125722660 is 66227521.

It is not an unprimeable number, because it can be changed into a prime (125722661) 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, 448870 + ... + 449149.

It is an arithmetic number, because the mean of its divisors is an integer number (12572280).

Almost surely, 2^125722660 is an apocalyptic number.

125722660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125722660 is an abundant number, since it is smaller than the sum of its proper divisors (176012060).

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

125722660 is a wasteful number, since it uses less digits than its factorization.

125722660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898035 (or 898033 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 125722660 is about 11212.6116493884. The cubic root of 125722660 is about 500.9616957633.

The spelling of 125722660 in words is "one hundred twenty-five million, seven hundred twenty-two thousand, six hundred sixty".