13161724 has 6 divisors (see below), whose sum is σ = 23033024. Its totient is φ = 6580860.

The previous prime is 13161703. The next prime is 13161769. The reversal of 13161724 is 42716131.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1645212 + ... + 1645219.

Almost surely, 2^13161724 is an apocalyptic number.

It is an amenable number.

13161724 is a deficient number, since it is larger than the sum of its proper divisors (9871300).

13161724 is a wasteful number, since it uses less digits than its factorization.

13161724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3290435 (or 3290433 counting only the distinct ones).

The product of its digits is 1008, while the sum is 25.

The square root of 13161724 is about 3627.9090396536. The cubic root of 13161724 is about 236.1044974367.

Adding to 13161724 its reverse (42716131), we get a palindrome (55877855).

The spelling of 13161724 in words is "thirteen million, one hundred sixty-one thousand, seven hundred twenty-four".