191160001 has 2 divisors, whose sum is σ = 191160002. Its totient is φ = 191160000.

The previous prime is 191159993. The next prime is 191160023. The reversal of 191160001 is 100061191.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 151167025 + 39992976 = 12295^2 + 6324^2 .

It is a cyclic number.

It is not a de Polignac number, because 191160001 - 2³ = 191159993 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (191160071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95580000 + 95580001.

It is an arithmetic number, because the mean of its divisors is an integer number (95580001).

Almost surely, 2^191160001 is an apocalyptic number.

It is an amenable number.

191160001 is a deficient number, since it is larger than the sum of its proper divisors (1).

191160001 is an equidigital number, since it uses as much as digits as its factorization.

191160001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 19.

The square root of 191160001 is about 13826.0623823271. The cubic root of 191160001 is about 576.0572869736.

The spelling of 191160001 in words is "one hundred ninety-one million, one hundred sixty thousand, one".