455261321 has 2 divisors, whose sum is σ = 455261322. Its totient is φ = 455261320.

The previous prime is 455261311. The next prime is 455261327. The reversal of 455261321 is 123162554.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 382398025 + 72863296 = 19555^2 + 8536^2 .

It is a cyclic number.

It is not a de Polignac number, because 455261321 - 2¹⁸ = 454999177 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (455261327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227630660 + 227630661.

It is an arithmetic number, because the mean of its divisors is an integer number (227630661).

Almost surely, 2^455261321 is an apocalyptic number.

It is an amenable number.

455261321 is a deficient number, since it is larger than the sum of its proper divisors (1).

455261321 is an equidigital number, since it uses as much as digits as its factorization.

455261321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 29.

The square root of 455261321 is about 21336.8535871623. The cubic root of 455261321 is about 769.2843865798.

The spelling of 455261321 in words is "four hundred fifty-five million, two hundred sixty-one thousand, three hundred twenty-one".