124983605 has 4 divisors (see below), whose sum is σ = 149980332. Its totient is φ = 99986880.

The previous prime is 124983589. The next prime is 124983613. The reversal of 124983605 is 506389421.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 80120401 + 44863204 = 8951^2 + 6698^2 .

It is not a de Polignac number, because 124983605 - 2⁴ = 124983589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12498356 + ... + 12498365.

It is an arithmetic number, because the mean of its divisors is an integer number (37495083).

Almost surely, 2^124983605 is an apocalyptic number.

It is an amenable number.

124983605 is a deficient number, since it is larger than the sum of its proper divisors (24996727).

124983605 is an equidigital number, since it uses as much as digits as its factorization.

124983605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24996726.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 124983605 is about 11179.6066567657. The cubic root of 124983605 is about 499.9781390442.

The spelling of 124983605 in words is "one hundred twenty-four million, nine hundred eighty-three thousand, six hundred five".