124493128 has 8 divisors (see below), whose sum is σ = 233424630. Its totient is φ = 62246560.

The previous prime is 124493119. The next prime is 124493137. The reversal of 124493128 is 821394421.

It is an interprime number because it is at equal distance from previous prime (124493119) and next prime (124493137).

It can be written as a sum of positive squares in only one way, i.e., 104080804 + 20412324 = 10202^2 + 4518^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 124493093 and 124493102.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7780813 + ... + 7780828.

Almost surely, 2^124493128 is an apocalyptic number.

It is an amenable number.

124493128 is a deficient number, since it is larger than the sum of its proper divisors (108931502).

124493128 is a wasteful number, since it uses less digits than its factorization.

124493128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15561647 (or 15561643 counting only the distinct ones).

The product of its digits is 13824, while the sum is 34.

The square root of 124493128 is about 11157.6488562779. The cubic root of 124493128 is about 499.3232551126.

The spelling of 124493128 in words is "one hundred twenty-four million, four hundred ninety-three thousand, one hundred twenty-eight".