124257906 has 12 divisors (see below), whose sum is σ = 269225502. Its totient is φ = 41419296.

The previous prime is 124257901. The next prime is 124257907. The reversal of 124257906 is 609752421.

It can be written as a sum of positive squares in only one way, i.e., 101304225 + 22953681 = 10065^2 + 4791^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (124257901) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3451591 + ... + 3451626.

Almost surely, 2^124257906 is an apocalyptic number.

124257906 is an abundant number, since it is smaller than the sum of its proper divisors (144967596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

124257906 is a wasteful number, since it uses less digits than its factorization.

124257906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6903225 (or 6903222 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 124257906 is about 11147.1030317298. The cubic root of 124257906 is about 499.0085767927.

The spelling of 124257906 in words is "one hundred twenty-four million, two hundred fifty-seven thousand, nine hundred six".