450222961 has 2 divisors, whose sum is σ = 450222962. Its totient is φ = 450222960.

The previous prime is 450222887. The next prime is 450222979. The reversal of 450222961 is 169222054.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 420455025 + 29767936 = 20505^2 + 5456^2 .

It is a cyclic number.

It is not a de Polignac number, because 450222961 - 2⁷ = 450222833 is a prime.

It is a super-2 number, since 2×450222961² = 405401429223215042, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (450222061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225111480 + 225111481.

It is an arithmetic number, because the mean of its divisors is an integer number (225111481).

Almost surely, 2^450222961 is an apocalyptic number.

It is an amenable number.

450222961 is a deficient number, since it is larger than the sum of its proper divisors (1).

450222961 is an equidigital number, since it uses as much as digits as its factorization.

450222961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 450222961 is about 21218.4580259735. The cubic root of 450222961 is about 766.4359723247.

The spelling of 450222961 in words is "four hundred fifty million, two hundred twenty-two thousand, nine hundred sixty-one".