445351349 has 2 divisors, whose sum is σ = 445351350. Its totient is φ = 445351348.

The previous prime is 445351343. The next prime is 445351433. The reversal of 445351349 is 943153544.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 349017124 + 96334225 = 18682^2 + 9815^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-445351349 is a prime.

It is a super-2 number, since 2×445351349² = 396675648112239602, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445351343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222675674 + 222675675.

It is an arithmetic number, because the mean of its divisors is an integer number (222675675).

Almost surely, 2^445351349 is an apocalyptic number.

It is an amenable number.

445351349 is a deficient number, since it is larger than the sum of its proper divisors (1).

445351349 is an equidigital number, since it uses as much as digits as its factorization.

445351349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129600, while the sum is 38.

The square root of 445351349 is about 21103.3492365548. The cubic root of 445351349 is about 763.6615489868.

The spelling of 445351349 in words is "four hundred forty-five million, three hundred fifty-one thousand, three hundred forty-nine".