124805013 has 4 divisors (see below), whose sum is σ = 166406688. Its totient is φ = 83203340.

The previous prime is 124805011. The next prime is 124805027. The reversal of 124805013 is 310508421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 124805013 - 2¹ = 124805011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124805011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20800833 + ... + 20800838.

It is an arithmetic number, because the mean of its divisors is an integer number (41601672).

Almost surely, 2^124805013 is an apocalyptic number.

It is an amenable number.

124805013 is a deficient number, since it is larger than the sum of its proper divisors (41601675).

124805013 is an equidigital number, since it uses as much as digits as its factorization.

124805013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41601674.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 124805013 is about 11171.6164005036. The cubic root of 124805013 is about 499.7398820341.

The spelling of 124805013 in words is "one hundred twenty-four million, eight hundred five thousand, thirteen".