115609601 has 2 divisors, whose sum is σ = 115609602. Its totient is φ = 115609600.

The previous prime is 115609597. The next prime is 115609603. The reversal of 115609601 is 106906511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115584001 + 25600 = 10751^2 + 160^2 .

It is a cyclic number.

It is not a de Polignac number, because 115609601 - 2² = 115609597 is a prime.

Together with 115609603, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (115609603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57804800 + 57804801.

It is an arithmetic number, because the mean of its divisors is an integer number (57804801).

Almost surely, 2^115609601 is an apocalyptic number.

It is an amenable number.

115609601 is a deficient number, since it is larger than the sum of its proper divisors (1).

115609601 is an equidigital number, since it uses as much as digits as its factorization.

115609601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 29.

The square root of 115609601 is about 10752.1905210055. The cubic root of 115609601 is about 487.1521617772.

The spelling of 115609601 in words is "one hundred fifteen million, six hundred nine thousand, six hundred one".