453321409 has 2 divisors, whose sum is σ = 453321410. Its totient is φ = 453321408.

The previous prime is 453321391. The next prime is 453321499. The reversal of 453321409 is 904123354.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 401120784 + 52200625 = 20028^2 + 7225^2 .

It is a cyclic number.

It is not a de Polignac number, because 453321409 - 2⁵ = 453321377 is a prime.

It is not a weakly prime, because it can be changed into another prime (453321499) 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 as a sum of consecutive naturals, namely, 226660704 + 226660705.

It is an arithmetic number, because the mean of its divisors is an integer number (226660705).

Almost surely, 2^453321409 is an apocalyptic number.

It is an amenable number.

453321409 is a deficient number, since it is larger than the sum of its proper divisors (1).

453321409 is an equidigital number, since it uses as much as digits as its factorization.

453321409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 453321409 is about 21291.3458710341. The cubic root of 453321409 is about 768.1901661474.

It can be divided in two parts, 45 and 3321409, that multiplied together give a triangular number (149463405 = T₁₇₂₈₉).

The spelling of 453321409 in words is "four hundred fifty-three million, three hundred twenty-one thousand, four hundred nine".