13250947 has 4 divisors (see below), whose sum is σ = 13260016. Its totient is φ = 13241880.

The previous prime is 13250911. The next prime is 13250953. The reversal of 13250947 is 74905231.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 74905231 = 29 ⋅2582939.

It is a cyclic number.

It is not a de Polignac number, because 13250947 - 2⁷ = 13250819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13250147) 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, 1788 + ... + 5449.

It is an arithmetic number, because the mean of its divisors is an integer number (3315004).

Almost surely, 2^13250947 is an apocalyptic number.

13250947 is a deficient number, since it is larger than the sum of its proper divisors (9069).

13250947 is an equidigital number, since it uses as much as digits as its factorization.

13250947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9068.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 13250947 is about 3640.1850227701. The cubic root of 13250947 is about 236.6368119012.

The spelling of 13250947 in words is "thirteen million, two hundred fifty thousand, nine hundred forty-seven".