453091491 has 12 divisors (see below), whose sum is σ = 655494840. Its totient is φ = 301585920.

The previous prime is 453091487. The next prime is 453091519. The reversal of 453091491 is 194190354.

It is a happy number.

It is not a de Polignac number, because 453091491 - 2² = 453091487 is a prime.

It is not an unprimeable number, because it can be changed into a prime (453091411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33501 + ... + 45038.

It is an arithmetic number, because the mean of its divisors is an integer number (54624570).

Almost surely, 2^453091491 is an apocalyptic number.

453091491 is a deficient number, since it is larger than the sum of its proper divisors (202403349).

453091491 is a wasteful number, since it uses less digits than its factorization.

453091491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79186 (or 79183 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 453091491 is about 21285.9458563626. The cubic root of 453091491 is about 768.0602725727.

The spelling of 453091491 in words is "four hundred fifty-three million, ninety-one thousand, four hundred ninety-one".