124381257 has 96 divisors (see below), whose sum is σ = 232735104. Its totient is φ = 58060800.

The previous prime is 124381253. The next prime is 124381259. The reversal of 124381257 is 752183421.

It is not a de Polignac number, because 124381257 - 2² = 124381253 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

Its product of digits (13440) is a multiple of the sum of its prime divisors (192).

It is not an unprimeable number, because it can be changed into a prime (124381253) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1282233 + ... + 1282329.

It is an arithmetic number, because the mean of its divisors is an integer number (2424324).

Almost surely, 2^124381257 is an apocalyptic number.

It is an amenable number.

124381257 is a deficient number, since it is larger than the sum of its proper divisors (108353847).

124381257 is a wasteful number, since it uses less digits than its factorization.

124381257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199 (or 192 counting only the distinct ones).

The product of its digits is 13440, while the sum is 33.

The square root of 124381257 is about 11152.6345318046. The cubic root of 124381257 is about 499.1736443584.

It can be divided in two parts, 12438 and 1257, that added together give a triangular number (13695 = T₁₆₅).

The spelling of 124381257 in words is "one hundred twenty-four million, three hundred eighty-one thousand, two hundred fifty-seven".