191114865 has 24 divisors (see below), whose sum is σ = 336885120. Its totient is φ = 100198944.

The previous prime is 191114851. The next prime is 191114881. The reversal of 191114865 is 568411191.

It is a happy number.

191114865 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 191114865 - 2⁴ = 191114849 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33337 + ... + 38646.

It is an arithmetic number, because the mean of its divisors is an integer number (14036880).

Almost surely, 2^191114865 is an apocalyptic number.

191114865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

191114865 is a deficient number, since it is larger than the sum of its proper divisors (145770255).

191114865 is a wasteful number, since it uses less digits than its factorization.

191114865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72053 (or 72050 counting only the distinct ones).

The product of its digits is 8640, while the sum is 36.

The square root of 191114865 is about 13824.4300063330. The cubic root of 191114865 is about 576.0119445584.

The spelling of 191114865 in words is "one hundred ninety-one million, one hundred fourteen thousand, eight hundred sixty-five".