13290047 has 4 divisors (see below), whose sum is σ = 13303200. Its totient is φ = 13276896.

The previous prime is 13290037. The next prime is 13290061. The reversal of 13290047 is 74009231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13290047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13289998 and 13290025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13290037) 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, 4922 + ... + 7127.

It is an arithmetic number, because the mean of its divisors is an integer number (3325800).

Almost surely, 2^13290047 is an apocalyptic number.

13290047 is a deficient number, since it is larger than the sum of its proper divisors (13153).

13290047 is a wasteful number, since it uses less digits than its factorization.

13290047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13152.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 13290047 is about 3645.5516729296. The cubic root of 13290047 is about 236.8693339914.

Adding to 13290047 its reverse (74009231), we get a palindrome (87299278).

The spelling of 13290047 in words is "thirteen million, two hundred ninety thousand, forty-seven".