115193961 has 8 divisors (see below), whose sum is σ = 170657760. Its totient is φ = 76795956.

The previous prime is 115193909. The next prime is 115193993. The reversal of 115193961 is 169391511.

It is a happy number.

It is not a de Polignac number, because 115193961 - 2¹¹ = 115191913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (115198961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2133195 + ... + 2133248.

It is an arithmetic number, because the mean of its divisors is an integer number (21332220).

Almost surely, 2^115193961 is an apocalyptic number.

It is an amenable number.

115193961 is a deficient number, since it is larger than the sum of its proper divisors (55463799).

115193961 is an equidigital number, since it uses as much as digits as its factorization.

115193961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4266452 (or 4266446 counting only the distinct ones).

The product of its digits is 7290, while the sum is 36.

The square root of 115193961 is about 10732.8449630096. The cubic root of 115193961 is about 486.5676570858.

The spelling of 115193961 in words is "one hundred fifteen million, one hundred ninety-three thousand, nine hundred sixty-one".