424271191 has 2 divisors, whose sum is σ = 424271192. Its totient is φ = 424271190.

The previous prime is 424271173. The next prime is 424271207. The reversal of 424271191 is 191172424.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 424271191 - 2¹¹ = 424269143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (424221191) 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, 212135595 + 212135596.

It is an arithmetic number, because the mean of its divisors is an integer number (212135596).

Almost surely, 2^424271191 is an apocalyptic number.

424271191 is a deficient number, since it is larger than the sum of its proper divisors (1).

424271191 is an equidigital number, since it uses as much as digits as its factorization.

424271191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 31.

The square root of 424271191 is about 20597.8443289583. The cubic root of 424271191 is about 751.4172850873.

The spelling of 424271191 in words is "four hundred twenty-four million, two hundred seventy-one thousand, one hundred ninety-one".