450144157 has 2 divisors, whose sum is σ = 450144158. Its totient is φ = 450144156.

The previous prime is 450144131. The next prime is 450144179. The reversal of 450144157 is 751441054.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 236575161 + 213568996 = 15381^2 + 14614^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-450144157 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 (450144197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225072078 + 225072079.

It is an arithmetic number, because the mean of its divisors is an integer number (225072079).

Almost surely, 2^450144157 is an apocalyptic number.

It is an amenable number.

450144157 is a deficient number, since it is larger than the sum of its proper divisors (1).

450144157 is an equidigital number, since it uses as much as digits as its factorization.

450144157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11200, while the sum is 31.

The square root of 450144157 is about 21216.6009765938. The cubic root of 450144157 is about 766.3912524489.

The spelling of 450144157 in words is "four hundred fifty million, one hundred forty-four thousand, one hundred fifty-seven".