115171903 has 24 divisors (see below), whose sum is σ = 147194064. Its totient is φ = 89107200.

The previous prime is 115171897. The next prime is 115171909. The reversal of 115171903 is 309171511.

It is an interprime number because it is at equal distance from previous prime (115171897) and next prime (115171909).

It is not a de Polignac number, because 115171903 - 2⁵ = 115171871 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 (115171909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 83943 + ... + 85303.

It is an arithmetic number, because the mean of its divisors is an integer number (6133086).

Almost surely, 2^115171903 is an apocalyptic number.

115171903 is a deficient number, since it is larger than the sum of its proper divisors (32022161).

115171903 is a wasteful number, since it uses less digits than its factorization.

115171903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1543 (or 1536 counting only the distinct ones).

The product of its (nonzero) digits is 945, while the sum is 28.

The square root of 115171903 is about 10731.8173204728. The cubic root of 115171903 is about 486.5365981818.

The spelling of 115171903 in words is "one hundred fifteen million, one hundred seventy-one thousand, nine hundred three".