125815444 has 12 divisors (see below), whose sum is σ = 220256064. Its totient is φ = 62885144.

The previous prime is 125815441. The next prime is 125815447. The reversal of 125815444 is 444518521.

It is an interprime number because it is at equal distance from previous prime (125815441) and next prime (125815447).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125815441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16869 + ... + 23155.

It is an arithmetic number, because the mean of its divisors is an integer number (18354672).

Almost surely, 2^125815444 is an apocalyptic number.

It is an amenable number.

125815444 is a deficient number, since it is larger than the sum of its proper divisors (94440620).

125815444 is a wasteful number, since it uses less digits than its factorization.

125815444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11294 (or 11292 counting only the distinct ones).

The product of its digits is 25600, while the sum is 34.

The square root of 125815444 is about 11216.7483701829. The cubic root of 125815444 is about 501.0849029353.

The spelling of 125815444 in words is "one hundred twenty-five million, eight hundred fifteen thousand, four hundred forty-four".