191080151 has 2 divisors, whose sum is σ = 191080152. Its totient is φ = 191080150.

The previous prime is 191080139. The next prime is 191080163. The reversal of 191080151 is 151080191.

It is a balanced prime because it is at equal distance from previous prime (191080139) and next prime (191080163).

It is a cyclic number.

It is not a de Polignac number, because 191080151 - 2¹⁰ = 191079127 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 191080151.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (191080111) 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 as a sum of consecutive naturals, namely, 95540075 + 95540076.

It is an arithmetic number, because the mean of its divisors is an integer number (95540076).

Almost surely, 2^191080151 is an apocalyptic number.

191080151 is a deficient number, since it is larger than the sum of its proper divisors (1).

191080151 is an equidigital number, since it uses as much as digits as its factorization.

191080151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 26.

The square root of 191080151 is about 13823.1744183454. The cubic root of 191080151 is about 575.9770669480.

The spelling of 191080151 in words is "one hundred ninety-one million, eighty thousand, one hundred fifty-one".