465211009 has 2 divisors, whose sum is σ = 465211010. Its totient is φ = 465211008.

The previous prime is 465211007. The next prime is 465211031. The reversal of 465211009 is 900112564.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 380055025 + 85155984 = 19495^2 + 9228^2 .

It is a cyclic number.

It is not a de Polignac number, because 465211009 - 2¹ = 465211007 is a prime.

Together with 465211007, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (465211003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 232605504 + 232605505.

It is an arithmetic number, because the mean of its divisors is an integer number (232605505).

Almost surely, 2^465211009 is an apocalyptic number.

It is an amenable number.

465211009 is a deficient number, since it is larger than the sum of its proper divisors (1).

465211009 is an equidigital number, since it uses as much as digits as its factorization.

465211009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 465211009 is about 21568.7507519559. The cubic root of 465211009 is about 774.8482583249.

The spelling of 465211009 in words is "four hundred sixty-five million, two hundred eleven thousand, nine".