450144197 has 2 divisors, whose sum is σ = 450144198. Its totient is φ = 450144196.

The previous prime is 450144179. The next prime is 450144203. The reversal of 450144197 is 791441054.

Together with previous prime (450144179) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 396766561 + 53377636 = 19919^2 + 7306^2 .

It is a cyclic number.

It is not a de Polignac number, because 450144197 - 2²⁶ = 383035333 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (450144157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225072098 + 225072099.

It is an arithmetic number, because the mean of its divisors is an integer number (225072099).

Almost surely, 2^450144197 is an apocalyptic number.

It is an amenable number.

450144197 is a deficient number, since it is larger than the sum of its proper divisors (1).

450144197 is an equidigital number, since it uses as much as digits as its factorization.

450144197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 450144197 is about 21216.6019192518. The cubic root of 450144197 is about 766.3912751495.

The spelling of 450144197 in words is "four hundred fifty million, one hundred forty-four thousand, one hundred ninety-seven".