13361247 has 16 divisors (see below), whose sum is σ = 20170080. Its totient is φ = 8738496.

The previous prime is 13361221. The next prime is 13361267. The reversal of 13361247 is 74216331.

13361247 is a `hidden beast` number, since 1 + 3 + 3 + 612 + 47 = 666.

It is not a de Polignac number, because 13361247 - 2⁷ = 13361119 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 13361247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13361267) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3238 + ... + 6099.

It is an arithmetic number, because the mean of its divisors is an integer number (1260630).

Almost surely, 2^13361247 is an apocalyptic number.

13361247 is a deficient number, since it is larger than the sum of its proper divisors (6808833).

13361247 is an equidigital number, since it uses as much as digits as its factorization.

13361247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9399 (or 9393 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 13361247 is about 3655.3039545296. The cubic root of 13361247 is about 237.2915815138.

Adding to 13361247 its reverse (74216331), we get a palindrome (87577578).

The spelling of 13361247 in words is "thirteen million, three hundred sixty-one thousand, two hundred forty-seven".