451900453 has 2 divisors, whose sum is σ = 451900454. Its totient is φ = 451900452.

The previous prime is 451900439. The next prime is 451900469. The reversal of 451900453 is 354009154.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 445336609 + 6563844 = 21103^2 + 2562^2 .

It is a cyclic number.

It is not a de Polignac number, because 451900453 - 2⁹ = 451899941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (451900403) 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, 225950226 + 225950227.

It is an arithmetic number, because the mean of its divisors is an integer number (225950227).

Almost surely, 2^451900453 is an apocalyptic number.

It is an amenable number.

451900453 is a deficient number, since it is larger than the sum of its proper divisors (1).

451900453 is an equidigital number, since it uses as much as digits as its factorization.

451900453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 451900453 is about 21257.9503480463. The cubic root of 451900453 is about 767.3866840313.

The spelling of 451900453 in words is "four hundred fifty-one million, nine hundred thousand, four hundred fifty-three".