13099285 has 4 divisors (see below), whose sum is σ = 15719148. Its totient is φ = 10479424.

The previous prime is 13099283. The next prime is 13099291. The reversal of 13099285 is 58299031.

13099285 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9253764 + 3845521 = 3042^2 + 1961^2 .

It is a cyclic number.

It is not a de Polignac number, because 13099285 - 2¹ = 13099283 is a prime.

It is a super-2 number, since 2×13099285² = 343182535022450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13099283) 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, 1309924 + ... + 1309933.

It is an arithmetic number, because the mean of its divisors is an integer number (3929787).

Almost surely, 2^13099285 is an apocalyptic number.

It is an amenable number.

13099285 is a deficient number, since it is larger than the sum of its proper divisors (2619863).

13099285 is an equidigital number, since it uses as much as digits as its factorization.

13099285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2619862.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 13099285 is about 3619.2934393332. The cubic root of 13099285 is about 235.7305468689.

The spelling of 13099285 in words is "thirteen million, ninety-nine thousand, two hundred eighty-five".