13147424 has 12 divisors (see below), whose sum is σ = 25884054. Its totient is φ = 6573696.

The previous prime is 13147399. The next prime is 13147427. The reversal of 13147424 is 42474131.

It can be written as a sum of positive squares in only one way, i.e., 12475024 + 672400 = 3532^2 + 820^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13147393 and 13147402.

It is not an unprimeable number, because it can be changed into a prime (13147427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 205397 + ... + 205460.

Almost surely, 2^13147424 is an apocalyptic number.

It is an amenable number.

13147424 is a deficient number, since it is larger than the sum of its proper divisors (12736630).

13147424 is an equidigital number, since it uses as much as digits as its factorization.

13147424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410867 (or 410859 counting only the distinct ones).

The product of its digits is 2688, while the sum is 26.

The square root of 13147424 is about 3625.9376718306. The cubic root of 13147424 is about 236.0189585459.

The spelling of 13147424 in words is "thirteen million, one hundred forty-seven thousand, four hundred twenty-four".