13124505 has 8 divisors (see below), whose sum is σ = 20999232. Its totient is φ = 6999728.

The previous prime is 13124483. The next prime is 13124509. The reversal of 13124505 is 50542131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13124505 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13124509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 437469 + ... + 437498.

It is an arithmetic number, because the mean of its divisors is an integer number (2624904).

Almost surely, 2^13124505 is an apocalyptic number.

13124505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13124505 is a deficient number, since it is larger than the sum of its proper divisors (7874727).

13124505 is an equidigital number, since it uses as much as digits as its factorization.

13124505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874975.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 13124505 is about 3622.7758694128. The cubic root of 13124505 is about 235.8817335709.

Adding to 13124505 its reverse (50542131), we get a palindrome (63666636).

The spelling of 13124505 in words is "thirteen million, one hundred twenty-four thousand, five hundred five".