996453191 has 2 divisors, whose sum is σ = 996453192. Its totient is φ = 996453190.

The previous prime is 996453169. The next prime is 996453221. The reversal of 996453191 is 191354699.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-996453191 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (996453391) 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, 498226595 + 498226596.

It is an arithmetic number, because the mean of its divisors is an integer number (498226596).

Almost surely, 2^996453191 is an apocalyptic number.

996453191 is a deficient number, since it is larger than the sum of its proper divisors (1).

996453191 is an equidigital number, since it uses as much as digits as its factorization.

996453191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 262440, while the sum is 47.

The square root of 996453191 is about 31566.6468127357. The cubic root of 996453191 is about 998.8163298110.

The spelling of 996453191 in words is "nine hundred ninety-six million, four hundred fifty-three thousand, one hundred ninety-one".