493161191 has 2 divisors, whose sum is σ = 493161192. Its totient is φ = 493161190.

The previous prime is 493161139. The next prime is 493161199. The reversal of 493161191 is 191161394.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 493161191 - 2¹⁸ = 492899047 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (493161199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246580595 + 246580596.

It is an arithmetic number, because the mean of its divisors is an integer number (246580596).

Almost surely, 2^493161191 is an apocalyptic number.

493161191 is a deficient number, since it is larger than the sum of its proper divisors (1).

493161191 is an equidigital number, since it uses as much as digits as its factorization.

493161191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5832, while the sum is 35.

The square root of 493161191 is about 22207.2328532845. The cubic root of 493161191 is about 790.0652571207.

The spelling of 493161191 in words is "four hundred ninety-three million, one hundred sixty-one thousand, one hundred ninety-one".