115966903 has 4 divisors (see below), whose sum is σ = 124887448. Its totient is φ = 107046360.

The previous prime is 115966867. The next prime is 115966931. The reversal of 115966903 is 309669511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 115966903 - 2²⁵ = 82412471 is a prime.

It is a super-2 number, since 2×115966903² = 26896645182822818, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115966933) 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, 4460253 + ... + 4460278.

It is an arithmetic number, because the mean of its divisors is an integer number (31221862).

Almost surely, 2^115966903 is an apocalyptic number.

115966903 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

115966903 is a deficient number, since it is larger than the sum of its proper divisors (8920545).

115966903 is an equidigital number, since it uses as much as digits as its factorization.

115966903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8920544.

The product of its (nonzero) digits is 43740, while the sum is 40.

The square root of 115966903 is about 10768.7930150040. The cubic root of 115966903 is about 487.6535083520.

The spelling of 115966903 in words is "one hundred fifteen million, nine hundred sixty-six thousand, nine hundred three".