115309190 has 32 divisors (see below), whose sum is σ = 211438080. Its totient is φ = 45268704.

The previous prime is 115309169. The next prime is 115309217. The reversal of 115309190 is 91903511.

It is a super-2 number, since 2×115309190² = 26592418596912200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 179009 + ... + 179651.

It is an arithmetic number, because the mean of its divisors is an integer number (6607440).

Almost surely, 2^115309190 is an apocalyptic number.

115309190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115309190 is a deficient number, since it is larger than the sum of its proper divisors (96128890).

115309190 is a wasteful number, since it uses less digits than its factorization.

115309190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 956.

The product of its (nonzero) digits is 1215, while the sum is 29.

The square root of 115309190 is about 10738.2116760660. The cubic root of 115309190 is about 486.7298415726.

The spelling of 115309190 in words is "one hundred fifteen million, three hundred nine thousand, one hundred ninety".