191082297 has 32 divisors (see below), whose sum is σ = 311731200. Its totient is φ = 101677248.

The previous prime is 191082293. The next prime is 191082299. The reversal of 191082297 is 792280191.

It is not a de Polignac number, because 191082297 - 2² = 191082293 is a prime.

It is a super-4 number, since 4×191082297⁴ (a number of 34 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (191082293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19483 + ... + 27599.

It is an arithmetic number, because the mean of its divisors is an integer number (9741600).

Almost surely, 2^191082297 is an apocalyptic number.

It is an amenable number.

191082297 is a deficient number, since it is larger than the sum of its proper divisors (120648903).

191082297 is a wasteful number, since it uses less digits than its factorization.

191082297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8205.

The product of its (nonzero) digits is 18144, while the sum is 39.

The square root of 191082297 is about 13823.2520413975. The cubic root of 191082297 is about 575.9792231848.

The spelling of 191082297 in words is "one hundred ninety-one million, eighty-two thousand, two hundred ninety-seven".