13099247 has 4 divisors (see below), whose sum is σ = 14970576. Its totient is φ = 11227920.

The previous prime is 13099223. The next prime is 13099253. The reversal of 13099247 is 74299031.

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

It is a cyclic number.

It is not a de Polignac number, because 13099247 - 2¹⁰ = 13098223 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 (13899247) 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, 935654 + ... + 935667.

It is an arithmetic number, because the mean of its divisors is an integer number (3742644).

Almost surely, 2^13099247 is an apocalyptic number.

13099247 is a deficient number, since it is larger than the sum of its proper divisors (1871329).

13099247 is an equidigital number, since it uses as much as digits as its factorization.

13099247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1871328.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 13099247 is about 3619.2881896859. The cubic root of 13099247 is about 235.7303189234.

The spelling of 13099247 in words is "thirteen million, ninety-nine thousand, two hundred forty-seven".