13015213 has 2 divisors, whose sum is σ = 13015214. Its totient is φ = 13015212.

The previous prime is 13015187. The next prime is 13015241. The reversal of 13015213 is 31251031.

13015213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6953769 + 6061444 = 2637^2 + 2462^2 .

It is a cyclic number.

It is not a de Polignac number, because 13015213 - 2⁵ = 13015181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13015273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6507606 + 6507607.

It is an arithmetic number, because the mean of its divisors is an integer number (6507607).

Almost surely, 2^13015213 is an apocalyptic number.

It is an amenable number.

13015213 is a deficient number, since it is larger than the sum of its proper divisors (1).

13015213 is an equidigital number, since it uses as much as digits as its factorization.

13015213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 13015213 is about 3607.6603221479. The cubic root of 13015213 is about 235.2251531574.

Adding to 13015213 its reverse (31251031), we get a palindrome (44266244).

The spelling of 13015213 in words is "thirteen million, fifteen thousand, two hundred thirteen".