125122536 has 128 divisors (see below), whose sum is σ = 433382400. Its totient is φ = 32495040.

The previous prime is 125122471. The next prime is 125122573. The reversal of 125122536 is 635221521.

It is a happy number.

125122536 is a `hidden beast` number, since 1 + 2 + 5 + 122 + 536 = 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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12871 + ... + 20393.

It is an arithmetic number, because the mean of its divisors is an integer number (3385800).

Almost surely, 2^125122536 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 125122536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216691200).

125122536 is an abundant number, since it is smaller than the sum of its proper divisors (308259864).

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

125122536 is a wasteful number, since it uses less digits than its factorization.

125122536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7556 (or 7546 counting only the distinct ones).

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

The square root of 125122536 is about 11185.8185216818. The cubic root of 125122536 is about 500.1633279755.

The spelling of 125122536 in words is "one hundred twenty-five million, one hundred twenty-two thousand, five hundred thirty-six".