125153640 has 64 divisors (see below), whose sum is σ = 417182400. Its totient is φ = 33374016.

The previous prime is 125153629. The next prime is 125153657. The reversal of 125153640 is 46351521.

125153640 is a `hidden beast` number, since 1 + 2 + 5 + 15 + 3 + 640 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56862 + ... + 59021.

It is an arithmetic number, because the mean of its divisors is an integer number (6518475).

Almost surely, 2^125153640 is an apocalyptic number.

125153640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125153640 is an abundant number, since it is smaller than the sum of its proper divisors (292028760).

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

125153640 is a wasteful number, since it uses less digits than its factorization.

125153640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115903 (or 115893 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 125153640 is about 11187.2087671590. The cubic root of 125153640 is about 500.2047694608.

The spelling of 125153640 in words is "one hundred twenty-five million, one hundred fifty-three thousand, six hundred forty".