124809916 has 24 divisors (see below), whose sum is σ = 272313216. Its totient is φ = 48627120.

The previous prime is 124809911. The next prime is 124809931. The reversal of 124809916 is 619908421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124809911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202306 + ... + 202921.

It is an arithmetic number, because the mean of its divisors is an integer number (11346384).

Almost surely, 2^124809916 is an apocalyptic number.

It is an amenable number.

124809916 is an abundant number, since it is smaller than the sum of its proper divisors (147503300).

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

124809916 is a wasteful number, since it uses less digits than its factorization.

124809916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405249 (or 405247 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 124809916 is about 11171.8358383929. The cubic root of 124809916 is about 499.7464260889.

The spelling of 124809916 in words is "one hundred twenty-four million, eight hundred nine thousand, nine hundred sixteen".