455438281 has 3 divisors (see below), whose sum is σ = 455459623. Its totient is φ = 455416940.

The previous prime is 455438257. The next prime is 455438311. The reversal of 455438281 is 182834554.

The square root of 455438281 is 21341.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 453306681 + 2131600 = 21291^2 + 1460^2 .

It is not a de Polignac number, because 455438281 - 2²¹ = 453341129 is a prime.

It is a super-2 number, since 2×455438281² = 414848055600469922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (455438231) 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 in 2 ways as a sum of consecutive naturals, for example, 10671 + ... + 32011.

Almost surely, 2^455438281 is an apocalyptic number.

455438281 is the 21341-st square number.

455438281 is the 10671-st centered octagonal number.

It is an amenable number.

455438281 is a deficient number, since it is larger than the sum of its proper divisors (21342).

455438281 is an frugal number, since it uses more digits than its factorization.

455438281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42682 (or 21341 counting only the distinct ones).

The product of its digits is 153600, while the sum is 40.

The cubic root of 455438281 is about 769.3840472394.

It can be divided in two parts, 45543 and 8281, that added together give a square (53824 = 232²).

The spelling of 455438281 in words is "four hundred fifty-five million, four hundred thirty-eight thousand, two hundred eighty-one".