2115191232 has 420 divisors, whose sum is σ = 7967359224. Its totient is φ = 548674560.

The previous prime is 2115191231. The next prime is 2115191237. The reversal of 2115191232 is 2321915112.

2115191232 is a `hidden beast` number, since 21 + 1 + 519 + 123 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 2115191196 and 2115191205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2115191231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 2793798 + ... + 2794554.

Almost surely, 2^2115191232 is an apocalyptic number.

2115191232 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2115191232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3983679612).

2115191232 is an abundant number, since it is smaller than the sum of its proper divisors (5852167992).

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

2115191232 is a wasteful number, since it uses less digits than its factorization.

2115191232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806 (or 780 counting only the distinct ones).

The product of its digits is 1080, while the sum is 27.

The square root of 2115191232 is about 45991.2082033077. The cubic root of 2115191232 is about 1283.6596180459.

The spelling of 2115191232 in words is "two billion, one hundred fifteen million, one hundred ninety-one thousand, two hundred thirty-two".