201191959 has 2 divisors, whose sum is σ = 201191960. Its totient is φ = 201191958.

The previous prime is 201191941. The next prime is 201191981. The reversal of 201191959 is 959191102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201191959 - 2⁵ = 201191927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201191909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100595979 + 100595980.

It is an arithmetic number, because the mean of its divisors is an integer number (100595980).

Almost surely, 2^201191959 is an apocalyptic number.

201191959 is a deficient number, since it is larger than the sum of its proper divisors (1).

201191959 is an equidigital number, since it uses as much as digits as its factorization.

201191959 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7290, while the sum is 37.

The square root of 201191959 is about 14184.2151351423. The cubic root of 201191959 is about 585.9630170372.

The spelling of 201191959 in words is "two hundred one million, one hundred ninety-one thousand, nine hundred fifty-nine".