124340513 has 4 divisors (see below), whose sum is σ = 135644208. Its totient is φ = 113036820.

The previous prime is 124340501. The next prime is 124340537. The reversal of 124340513 is 315043421.

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 124340513 - 2⁶ = 124340449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124340113) 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, 5651831 + ... + 5651852.

It is an arithmetic number, because the mean of its divisors is an integer number (33911052).

Almost surely, 2^124340513 is an apocalyptic number.

It is an amenable number.

124340513 is a deficient number, since it is larger than the sum of its proper divisors (11303695).

124340513 is a wasteful number, since it uses less digits than its factorization.

124340513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11303694.

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

The square root of 124340513 is about 11150.8077285908. The cubic root of 124340513 is about 499.1191330582.

Adding to 124340513 its reverse (315043421), we get a palindrome (439383934).

The spelling of 124340513 in words is "one hundred twenty-four million, three hundred forty thousand, five hundred thirteen".