13047613 has 4 divisors (see below), whose sum is σ = 13055488. Its totient is φ = 13039740.

The previous prime is 13047611. The next prime is 13047637. The reversal of 13047613 is 31674031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 13047613 - 2¹ = 13047611 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13047611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 381 + ... + 5122.

It is an arithmetic number, because the mean of its divisors is an integer number (3263872).

Almost surely, 2^13047613 is an apocalyptic number.

It is an amenable number.

13047613 is a deficient number, since it is larger than the sum of its proper divisors (7875).

13047613 is an equidigital number, since it uses as much as digits as its factorization.

13047613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7874.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 13047613 is about 3612.1479759279. The cubic root of 13047613 is about 235.4201808161.

The spelling of 13047613 in words is "thirteen million, forty-seven thousand, six hundred thirteen".