124681138 has 16 divisors (see below), whose sum is σ = 188496000. Its totient is φ = 61851600.

The previous prime is 124681129. The next prime is 124681147. The reversal of 124681138 is 831186421.

It is an interprime number because it is at equal distance from previous prime (124681129) and next prime (124681147).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 249613 + ... + 250111.

It is an arithmetic number, because the mean of its divisors is an integer number (11781000).

Almost surely, 2^124681138 is an apocalyptic number.

124681138 is a deficient number, since it is larger than the sum of its proper divisors (63814862).

124681138 is a wasteful number, since it uses less digits than its factorization.

124681138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1233.

The product of its digits is 9216, while the sum is 34.

The square root of 124681138 is about 11166.0708398254. The cubic root of 124681138 is about 499.5744886496.

The spelling of 124681138 in words is "one hundred twenty-four million, six hundred eighty-one thousand, one hundred thirty-eight".