13152213 has 20 divisors (see below), whose sum is σ = 19744780. Its totient is φ = 8724672.

The previous prime is 13152193. The next prime is 13152229. The reversal of 13152213 is 31225131.

13152213 is a `hidden beast` number, since 131 + 522 + 13 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 10614564 + 2537649 = 3258^2 + 1593^2 .

It is not a de Polignac number, because 13152213 - 2¹⁰ = 13151189 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 (13152413) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 31953 + ... + 32361.

It is an arithmetic number, because the mean of its divisors is an integer number (987239).

Almost surely, 2^13152213 is an apocalyptic number.

It is an amenable number.

13152213 is a deficient number, since it is larger than the sum of its proper divisors (6592567).

13152213 is an equidigital number, since it uses as much as digits as its factorization.

13152213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818 (or 809 counting only the distinct ones).

The product of its digits is 180, while the sum is 18.

The square root of 13152213 is about 3626.5979926096. The cubic root of 13152213 is about 236.0476120064.

Adding to 13152213 its reverse (31225131), we get a palindrome (44377344).

The spelling of 13152213 in words is "thirteen million, one hundred fifty-two thousand, two hundred thirteen".