450144557 has 2 divisors, whose sum is σ = 450144558. Its totient is φ = 450144556.

The previous prime is 450144509. The next prime is 450144593. The reversal of 450144557 is 755441054.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 392475721 + 57668836 = 19811^2 + 7594^2 .

It is a cyclic number.

It is not a de Polignac number, because 450144557 - 2⁶ = 450144493 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, 225072278 + 225072279.

It is an arithmetic number, because the mean of its divisors is an integer number (225072279).

Almost surely, 2^450144557 is an apocalyptic number.

It is an amenable number.

450144557 is a deficient number, since it is larger than the sum of its proper divisors (1).

450144557 is an equidigital number, since it uses as much as digits as its factorization.

450144557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56000, while the sum is 35.

The square root of 450144557 is about 21216.6104031723. The cubic root of 450144557 is about 766.3914794550.

The spelling of 450144557 in words is "four hundred fifty million, one hundred forty-four thousand, five hundred fifty-seven".