13102724 has 12 divisors (see below), whose sum is σ = 22988700. Its totient is φ = 6534528.

The previous prime is 13102711. The next prime is 13102729. The reversal of 13102724 is 42720131.

It can be written as a sum of positive squares in 2 ways, for example, as 10445824 + 2656900 = 3232^2 + 1630^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13102696 and 13102705.

It is not an unprimeable number, because it can be changed into a prime (13102729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2369 + ... + 5640.

It is an arithmetic number, because the mean of its divisors is an integer number (1915725).

Almost surely, 2^13102724 is an apocalyptic number.

It is an amenable number.

13102724 is a deficient number, since it is larger than the sum of its proper divisors (9885976).

13102724 is a wasteful number, since it uses less digits than its factorization.

13102724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8422 (or 8420 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 13102724 is about 3619.7685008851. The cubic root of 13102724 is about 235.7511741122.

Adding to 13102724 its reverse (42720131), we get a palindrome (55822855).

The spelling of 13102724 in words is "thirteen million, one hundred two thousand, seven hundred twenty-four".