115891192 has 32 divisors (see below), whose sum is σ = 230036400. Its totient is φ = 54641664.

The previous prime is 115891189. The next prime is 115891199. The reversal of 115891192 is 291198511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115891199) 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, 4168 + ... + 15784.

Almost surely, 2^115891192 is an apocalyptic number.

It is an amenable number.

115891192 is a deficient number, since it is larger than the sum of its proper divisors (114145208).

115891192 is a wasteful number, since it uses less digits than its factorization.

115891192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11695 (or 11691 counting only the distinct ones).

The product of its digits is 6480, while the sum is 37.

The square root of 115891192 is about 10765.2771445978. The cubic root of 115891192 is about 487.5473609039.

It can be divided in two parts, 1158911 and 92, that added together give a triangular number (1159003 = T₁₅₂₂).

The spelling of 115891192 in words is "one hundred fifteen million, eight hundred ninety-one thousand, one hundred ninety-two".