115964491 has 2 divisors, whose sum is σ = 115964492. Its totient is φ = 115964490.

The previous prime is 115964489. The next prime is 115964561. The reversal of 115964491 is 194469511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 115964491 - 2¹ = 115964489 is a prime.

Together with 115964489, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (115964411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57982245 + 57982246.

It is an arithmetic number, because the mean of its divisors is an integer number (57982246).

Almost surely, 2^115964491 is an apocalyptic number.

115964491 is a deficient number, since it is larger than the sum of its proper divisors (1).

115964491 is an equidigital number, since it uses as much as digits as its factorization.

115964491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880, while the sum is 40.

The square root of 115964491 is about 10768.6810241552. The cubic root of 115964491 is about 487.6501274206.

The spelling of 115964491 in words is "one hundred fifteen million, nine hundred sixty-four thousand, four hundred ninety-one".