124991552 has 42 divisors (see below), whose sum is σ = 288532062. Its totient is φ = 53566464.

The previous prime is 124991551. The next prime is 124991563. The reversal of 124991552 is 255199421.

It can be written as a sum of positive squares in only one way, i.e., 124188736 + 802816 = 11144^2 + 896^2 .

It is not an unprimeable number, because it can be changed into a prime (124991551) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16793 + ... + 23064.

It is an arithmetic number, because the mean of its divisors is an integer number (6869811).

Almost surely, 2^124991552 is an apocalyptic number.

It is an amenable number.

124991552 is an abundant number, since it is smaller than the sum of its proper divisors (163540510).

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

124991552 is an equidigital number, since it uses as much as digits as its factorization.

124991552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39883 (or 39866 counting only the distinct ones).

The product of its digits is 32400, while the sum is 38.

The square root of 124991552 is about 11179.9620750698. The cubic root of 124991552 is about 499.9887357462.

The spelling of 124991552 in words is "one hundred twenty-four million, nine hundred ninety-one thousand, five hundred fifty-two".