451005349 has 2 divisors, whose sum is σ = 451005350. Its totient is φ = 451005348.

The previous prime is 451005311. The next prime is 451005383. The reversal of 451005349 is 943500154.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 389272900 + 61732449 = 19730^2 + 7857^2 .

It is a cyclic number.

It is not a de Polignac number, because 451005349 - 2²⁷ = 316787621 is a prime.

It is a super-2 number, since 2×451005349² = 406811649653223602, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 451005349.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (451005449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225502674 + 225502675.

It is an arithmetic number, because the mean of its divisors is an integer number (225502675).

Almost surely, 2^451005349 is an apocalyptic number.

It is an amenable number.

451005349 is a deficient number, since it is larger than the sum of its proper divisors (1).

451005349 is an equidigital number, since it uses as much as digits as its factorization.

451005349 is an evil number, because the sum of its binary digits is even.

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

The square root of 451005349 is about 21236.8865185083. The cubic root of 451005349 is about 766.8796808433.

The spelling of 451005349 in words is "four hundred fifty-one million, five thousand, three hundred forty-nine".