191160887 has 2 divisors, whose sum is σ = 191160888. Its totient is φ = 191160886.

The previous prime is 191160883. The next prime is 191160899. The reversal of 191160887 is 788061191.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 191160887 - 2² = 191160883 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (191160883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95580443 + 95580444.

It is an arithmetic number, because the mean of its divisors is an integer number (95580444).

Almost surely, 2^191160887 is an apocalyptic number.

191160887 is a deficient number, since it is larger than the sum of its proper divisors (1).

191160887 is an equidigital number, since it uses as much as digits as its factorization.

191160887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 41.

The square root of 191160887 is about 13826.0944232274. The cubic root of 191160887 is about 576.0581769540.

The spelling of 191160887 in words is "one hundred ninety-one million, one hundred sixty thousand, eight hundred eighty-seven".