450617261 has 2 divisors, whose sum is σ = 450617262. Its totient is φ = 450617260.

The previous prime is 450617213. The next prime is 450617267. The reversal of 450617261 is 162716054.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 376554025 + 74063236 = 19405^2 + 8606^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-450617261 is a prime.

It is a super-2 number, since 2×450617261² = 406111831822284242, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (450617267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225308630 + 225308631.

It is an arithmetic number, because the mean of its divisors is an integer number (225308631).

Almost surely, 2^450617261 is an apocalyptic number.

It is an amenable number.

450617261 is a deficient number, since it is larger than the sum of its proper divisors (1).

450617261 is an equidigital number, since it uses as much as digits as its factorization.

450617261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 450617261 is about 21227.7474311336. The cubic root of 450617261 is about 766.6596522568.

The spelling of 450617261 in words is "four hundred fifty million, six hundred seventeen thousand, two hundred sixty-one".