191027083 has 16 divisors (see below), whose sum is σ = 217566720. Its totient is φ = 166267296.

The previous prime is 191027071. The next prime is 191027099. The reversal of 191027083 is 380720191.

It is not a de Polignac number, because 191027083 - 2⁹ = 191026571 is a prime.

It is not an unprimeable number, because it can be changed into a prime (191027003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54366 + ... + 57772.

It is an arithmetic number, because the mean of its divisors is an integer number (13597920).

Almost surely, 2^191027083 is an apocalyptic number.

191027083 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

191027083 is a deficient number, since it is larger than the sum of its proper divisors (26539637).

191027083 is a wasteful number, since it uses less digits than its factorization.

191027083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3666.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 191027083 is about 13821.2547549056. The cubic root of 191027083 is about 575.9237406677.

The spelling of 191027083 in words is "one hundred ninety-one million, twenty-seven thousand, eighty-three".