453491 has 4 divisors (see below), whose sum is σ = 473232. Its totient is φ = 433752.

The previous prime is 453461. The next prime is 453527. The reversal of 453491 is 194354.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 194354 = 2 ⋅97177.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-453491 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 453491.

It is not an unprimeable number, because it can be changed into a prime (453421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9836 + ... + 9881.

It is an arithmetic number, because the mean of its divisors is an integer number (118308).

2⁴⁵³⁴⁹¹ is an apocalyptic number.

453491 is a deficient number, since it is larger than the sum of its proper divisors (19741).

453491 is a wasteful number, since it uses less digits than its factorization.

453491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19740.

The product of its digits is 2160, while the sum is 26.

The square root of 453491 is about 673.4174039925. The cubic root of 453491 is about 76.8285949473.

The spelling of 453491 in words is "four hundred fifty-three thousand, four hundred ninety-one".