13123715 has 16 divisors (see below), whose sum is σ = 17647200. Its totient is φ = 9285120.

The previous prime is 13123697. The next prime is 13123727. The reversal of 13123715 is 51732131.

It is not a de Polignac number, because 13123715 - 2⁸ = 13123459 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1190 + ... + 5259.

It is an arithmetic number, because the mean of its divisors is an integer number (1102950).

Almost surely, 2^13123715 is an apocalyptic number.

13123715 is a deficient number, since it is larger than the sum of its proper divisors (4523485).

13123715 is a wasteful number, since it uses less digits than its factorization.

13123715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6502.

The product of its digits is 630, while the sum is 23.

The square root of 13123715 is about 3622.6668353576. Note that the first 3 decimals coincide. The cubic root of 13123715 is about 235.8770006862.

Adding to 13123715 its reverse (51732131), we get a palindrome (64855846).

The spelling of 13123715 in words is "thirteen million, one hundred twenty-three thousand, seven hundred fifteen".