13291245 has 36 divisors (see below), whose sum is σ = 25333308. Its totient is φ = 6441600.

The previous prime is 13291237. The next prime is 13291253. The reversal of 13291245 is 54219231.

It is an interprime number because it is at equal distance from previous prime (13291237) and next prime (13291253).

It can be written as a sum of positive squares in 2 ways, for example, as 2832489 + 10458756 = 1683^2 + 3234^2 .

It is not a de Polignac number, because 13291245 - 2³ = 13291237 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4225 + ... + 6665.

It is an arithmetic number, because the mean of its divisors is an integer number (703703).

Almost surely, 2^13291245 is an apocalyptic number.

13291245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13291245 is a deficient number, since it is larger than the sum of its proper divisors (12042063).

13291245 is a wasteful number, since it uses less digits than its factorization.

13291245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2474 (or 2460 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 13291245 is about 3645.7159790636. The cubic root of 13291245 is about 236.8764511204.

The spelling of 13291245 in words is "thirteen million, two hundred ninety-one thousand, two hundred forty-five".