124540313 has 4 divisors (see below), whose sum is σ = 125304528. Its totient is φ = 123776100.

The previous prime is 124540303. The next prime is 124540333. The reversal of 124540313 is 313045421.

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 124540313 - 2²⁰ = 123491737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124540303) 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, 381863 + ... + 382188.

It is an arithmetic number, because the mean of its divisors is an integer number (31326132).

Almost surely, 2^124540313 is an apocalyptic number.

It is an amenable number.

124540313 is a deficient number, since it is larger than the sum of its proper divisors (764215).

124540313 is an equidigital number, since it uses as much as digits as its factorization.

124540313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764214.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 124540313 is about 11159.7631247263. The cubic root of 124540313 is about 499.3863311292.

Adding to 124540313 its reverse (313045421), we get a palindrome (437585734).

The spelling of 124540313 in words is "one hundred twenty-four million, five hundred forty thousand, three hundred thirteen".