115109663 has 4 divisors (see below), whose sum is σ = 116403120. Its totient is φ = 113816208.

The previous prime is 115109611. The next prime is 115109699. The reversal of 115109663 is 366901511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 366901511 = 883 ⋅415517.

It is a cyclic number.

It is not a de Polignac number, because 115109663 - 2¹² = 115105567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115105663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 646595 + ... + 646772.

It is an arithmetic number, because the mean of its divisors is an integer number (29100780).

Almost surely, 2^115109663 is an apocalyptic number.

115109663 is a deficient number, since it is larger than the sum of its proper divisors (1293457).

115109663 is an equidigital number, since it uses as much as digits as its factorization.

115109663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1293456.

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 115109663 is about 10728.9171401405. The cubic root of 115109663 is about 486.4489393761.

The spelling of 115109663 in words is "one hundred fifteen million, one hundred nine thousand, six hundred sixty-three".