13213099 has 4 divisors (see below), whose sum is σ = 13639360. Its totient is φ = 12786840.

The previous prime is 13213093. The next prime is 13213121. The reversal of 13213099 is 99031231.

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 13213099 - 2¹³ = 13204907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13213093) 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, 213084 + ... + 213145.

It is an arithmetic number, because the mean of its divisors is an integer number (3409840).

Almost surely, 2^13213099 is an apocalyptic number.

13213099 is a deficient number, since it is larger than the sum of its proper divisors (426261).

13213099 is an equidigital number, since it uses as much as digits as its factorization.

13213099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426260.

The product of its (nonzero) digits is 1458, while the sum is 28.

The square root of 13213099 is about 3634.9826684594. The cubic root of 13213099 is about 236.4112991966.

It can be divided in two parts, 132 and 13099, that added together give a palindrome (13231).

The spelling of 13213099 in words is "thirteen million, two hundred thirteen thousand, ninety-nine".