115613189 has 2 divisors, whose sum is σ = 115613190. Its totient is φ = 115613188.

The previous prime is 115613161. The next prime is 115613191. The reversal of 115613189 is 981316511.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78464164 + 37149025 = 8858^2 + 6095^2 .

It is a cyclic number.

It is not a de Polignac number, because 115613189 - 2⁸ = 115612933 is a prime.

Together with 115613191, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115613159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57806594 + 57806595.

It is an arithmetic number, because the mean of its divisors is an integer number (57806595).

Almost surely, 2^115613189 is an apocalyptic number.

It is an amenable number.

115613189 is a deficient number, since it is larger than the sum of its proper divisors (1).

115613189 is an equidigital number, since it uses as much as digits as its factorization.

115613189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 35.

The square root of 115613189 is about 10752.3573694330. The cubic root of 115613189 is about 487.1572013929.

The spelling of 115613189 in words is "one hundred fifteen million, six hundred thirteen thousand, one hundred eighty-nine".