115191048 has 128 divisors (see below), whose sum is σ = 355518720. Its totient is φ = 30351360.

The previous prime is 115191047. The next prime is 115191059. The reversal of 115191048 is 840191511.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (115191047) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 150988 + ... + 151748.

It is an arithmetic number, because the mean of its divisors is an integer number (2777490).

Almost surely, 2^115191048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115191048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177759360).

115191048 is an abundant number, since it is smaller than the sum of its proper divisors (240327672).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115191048 is a wasteful number, since it uses less digits than its factorization.

115191048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847 (or 843 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 30.

The square root of 115191048 is about 10732.7092572193. The cubic root of 115191048 is about 486.5635556453.

The spelling of 115191048 in words is "one hundred fifteen million, one hundred ninety-one thousand, forty-eight".