450323261 has 2 divisors, whose sum is σ = 450323262. Its totient is φ = 450323260.

The previous prime is 450323249. The next prime is 450323287. The reversal of 450323261 is 162323054.

It is an a-pointer prime, because the next prime (450323287) can be obtained adding 450323261 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 356039161 + 94284100 = 18869^2 + 9710^2 .

It is a cyclic number.

It is not a de Polignac number, because 450323261 - 2²⁶ = 383214397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 450323261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (450323221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225161630 + 225161631.

It is an arithmetic number, because the mean of its divisors is an integer number (225161631).

Almost surely, 2^450323261 is an apocalyptic number.

It is an amenable number.

450323261 is a deficient number, since it is larger than the sum of its proper divisors (1).

450323261 is an equidigital number, since it uses as much as digits as its factorization.

450323261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 450323261 is about 21220.8214025753. The cubic root of 450323261 is about 766.4928832531.

The spelling of 450323261 in words is "four hundred fifty million, three hundred twenty-three thousand, two hundred sixty-one".