465491281 has 2 divisors, whose sum is σ = 465491282. Its totient is φ = 465491280.

The previous prime is 465491261. The next prime is 465491303. The reversal of 465491281 is 182194564.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 404010000 + 61481281 = 20100^2 + 7841^2 .

It is a cyclic number.

It is not a de Polignac number, because 465491281 - 2⁷ = 465491153 is a prime.

It is a super-2 number, since 2×465491281² = 433364265374041922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (465491231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 232745640 + 232745641.

It is an arithmetic number, because the mean of its divisors is an integer number (232745641).

Almost surely, 2^465491281 is an apocalyptic number.

It is an amenable number.

465491281 is a deficient number, since it is larger than the sum of its proper divisors (1).

465491281 is an equidigital number, since it uses as much as digits as its factorization.

465491281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69120, while the sum is 40.

The square root of 465491281 is about 21575.2469510780. The cubic root of 465491281 is about 775.0038326553.

The spelling of 465491281 in words is "four hundred sixty-five million, four hundred ninety-one thousand, two hundred eighty-one".