124317981 has 24 divisors (see below), whose sum is σ = 183027936. Its totient is φ = 81298080.

The previous prime is 124317979. The next prime is 124317997. The reversal of 124317981 is 189713421.

It is a happy number.

It is not a de Polignac number, because 124317981 - 2¹ = 124317979 is a prime.

It is a super-2 number, since 2×124317981² = 30909920799832722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124317911) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 121251 + ... + 122271.

It is an arithmetic number, because the mean of its divisors is an integer number (7626164).

Almost surely, 2^124317981 is an apocalyptic number.

It is an amenable number.

124317981 is a deficient number, since it is larger than the sum of its proper divisors (58709955).

124317981 is a wasteful number, since it uses less digits than its factorization.

124317981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1273 (or 1270 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 124317981 is about 11149.7973524186. The cubic root of 124317981 is about 499.0889824355.

The spelling of 124317981 in words is "one hundred twenty-four million, three hundred seventeen thousand, nine hundred eighty-one".