124402131 has 18 divisors (see below), whose sum is σ = 209030172. Its totient is φ = 71086680.

The previous prime is 124402127. The next prime is 124402171. The reversal of 124402131 is 131204421.

124402131 is a `hidden beast` number, since 12 + 440 + 213 + 1 = 666.

It is not a de Polignac number, because 124402131 - 2² = 124402127 is a prime.

It is a super-2 number, since 2×124402131² = 30951780394682322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (124402121) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 140605 + ... + 141486.

Almost surely, 2^124402131 is an apocalyptic number.

124402131 is a deficient number, since it is larger than the sum of its proper divisors (84628041).

124402131 is a wasteful number, since it uses less digits than its factorization.

124402131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282111 (or 282101 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 124402131 is about 11153.5703252367. The cubic root of 124402131 is about 499.2015670216.

Adding to 124402131 its reverse (131204421), we get a palindrome (255606552).

The spelling of 124402131 in words is "one hundred twenty-four million, four hundred two thousand, one hundred thirty-one".