445585949 has 2 divisors, whose sum is σ = 445585950. Its totient is φ = 445585948.

The previous prime is 445585919. The next prime is 445585951. The reversal of 445585949 is 949585544.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 327863449 + 117722500 = 18107^2 + 10850^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-445585949 is a prime.

Together with 445585951, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 445585949.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445585919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222792974 + 222792975.

It is an arithmetic number, because the mean of its divisors is an integer number (222792975).

Almost surely, 2^445585949 is an apocalyptic number.

It is an amenable number.

445585949 is a deficient number, since it is larger than the sum of its proper divisors (1).

445585949 is an equidigital number, since it uses as much as digits as its factorization.

445585949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184000, while the sum is 53.

The square root of 445585949 is about 21108.9068641652. The cubic root of 445585949 is about 763.7956180770.

The spelling of 445585949 in words is "four hundred forty-five million, five hundred eighty-five thousand, nine hundred forty-nine".