13397015 has 4 divisors (see below), whose sum is σ = 16076424. Its totient is φ = 10717608.

The previous prime is 13397011. The next prime is 13397029. The reversal of 13397015 is 51079331.

13397015 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, and also an emirpimes, since its reverse is a distinct semiprime: 51079331 = 1621 ⋅31511.

It is a cyclic number.

It is not a de Polignac number, because 13397015 - 2² = 13397011 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 (13397011) 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, 1339697 + ... + 1339706.

It is an arithmetic number, because the mean of its divisors is an integer number (4019106).

Almost surely, 2^13397015 is an apocalyptic number.

13397015 is a deficient number, since it is larger than the sum of its proper divisors (2679409).

13397015 is an equidigital number, since it uses as much as digits as its factorization.

13397015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2679408.

The product of its (nonzero) digits is 2835, while the sum is 29.

The square root of 13397015 is about 3660.1933009064. The cubic root of 13397015 is about 237.5031356927.

The spelling of 13397015 in words is "thirteen million, three hundred ninety-seven thousand, fifteen".