125905736 has 32 divisors (see below), whose sum is σ = 259005600. Its totient is φ = 56903040.

The previous prime is 125905721. The next prime is 125905753. The reversal of 125905736 is 637509521.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 125905736.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11756 + ... + 19748.

It is an arithmetic number, because the mean of its divisors is an integer number (8093925).

Almost surely, 2^125905736 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125905736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129502800).

125905736 is an abundant number, since it is smaller than the sum of its proper divisors (133099864).

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

125905736 is a wasteful number, since it uses less digits than its factorization.

125905736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8189 (or 8185 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 38.

The square root of 125905736 is about 11220.7725224246. The cubic root of 125905736 is about 501.2047428579.

The spelling of 125905736 in words is "one hundred twenty-five million, nine hundred five thousand, seven hundred thirty-six".