11513897 has 2 divisors, whose sum is σ = 11513898. Its totient is φ = 11513896.

The previous prime is 11513893. The next prime is 11513911. The reversal of 11513897 is 79831511.

11513897 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., 9916201 + 1597696 = 3149^2 + 1264^2 .

It is a cyclic number.

It is not a de Polignac number, because 11513897 - 2² = 11513893 is a prime.

It is not a weakly prime, because it can be changed into another prime (11513893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5756948 + 5756949.

It is an arithmetic number, because the mean of its divisors is an integer number (5756949).

Almost surely, 2^11513897 is an apocalyptic number.

It is an amenable number.

11513897 is a deficient number, since it is larger than the sum of its proper divisors (1).

11513897 is an equidigital number, since it uses as much as digits as its factorization.

11513897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7560, while the sum is 35.

The square root of 11513897 is about 3393.2133737801. The cubic root of 11513897 is about 225.8087569497.

The spelling of 11513897 in words is "eleven million, five hundred thirteen thousand, eight hundred ninety-seven".