125668620 has 144 divisors (see below), whose sum is σ = 475308288. Its totient is φ = 26110080.

The previous prime is 125668597. The next prime is 125668639. The reversal of 125668620 is 26866521.

125668620 is a `hidden beast` number, since 1 + 25 + 6 + 6 + 8 + 620 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9327 + ... + 18393.

It is an arithmetic number, because the mean of its divisors is an integer number (3300752).

Almost surely, 2^125668620 is an apocalyptic number.

125668620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125668620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (237654144).

125668620 is an abundant number, since it is smaller than the sum of its proper divisors (349639668).

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

125668620 is a wasteful number, since it uses less digits than its factorization.

125668620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9100 (or 9095 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 125668620 is about 11210.2016038963. The cubic root of 125668620 is about 500.8899085193.

The spelling of 125668620 in words is "one hundred twenty-five million, six hundred sixty-eight thousand, six hundred twenty".