13315197 has 16 divisors (see below), whose sum is σ = 20345472. Its totient is φ = 7587840.

The previous prime is 13315193. The next prime is 13315223. The reversal of 13315197 is 79151331.

It is a happy number.

It is not a de Polignac number, because 13315197 - 2² = 13315193 is a prime.

It is a super-2 number, since 2×13315197² = 354588942297618, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13315193) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10333 + ... + 11549.

It is an arithmetic number, because the mean of its divisors is an integer number (1271592).

Almost surely, 2^13315197 is an apocalyptic number.

It is an amenable number.

13315197 is a deficient number, since it is larger than the sum of its proper divisors (7030275).

13315197 is a wasteful number, since it uses less digits than its factorization.

13315197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1748.

The product of its digits is 2835, while the sum is 30.

The square root of 13315197 is about 3648.9994519046. Note that the first 3 decimals coincide. The cubic root of 13315197 is about 237.0186565099.

The spelling of 13315197 in words is "thirteen million, three hundred fifteen thousand, one hundred ninety-seven".