125374644 has 36 divisors (see below), whose sum is σ = 317377060. Its totient is φ = 41731200.

The previous prime is 125374637. The next prime is 125374649. The reversal of 125374644 is 446473521.

125374644 is a `hidden beast` number, since 1 + 2 + 5 + 3 + 7 + 4 + 644 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 34363044 + 91011600 = 5862^2 + 9540^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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

Its product of digits (80640) is a multiple of the sum of its prime factors (5040).

It is a junction number, because it is equal to n+sod(n) for n = 125374599 and 125374608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125374649) 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 11 ways as a sum of consecutive naturals, for example, 27744 + ... + 31944.

Almost surely, 2^125374644 is an apocalyptic number.

It is an amenable number.

125374644 is an abundant number, since it is smaller than the sum of its proper divisors (192002416).

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

125374644 is a wasteful number, since it uses less digits than its factorization.

125374644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5040 (or 5035 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 125374644 is about 11197.0819412917. The cubic root of 125374644 is about 500.4990271115.

The spelling of 125374644 in words is "one hundred twenty-five million, three hundred seventy-four thousand, six hundred forty-four".