461090809 has 2 divisors, whose sum is σ = 461090810. Its totient is φ = 461090808.

The previous prime is 461090783. The next prime is 461090837. The reversal of 461090809 is 908090164.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 331130809 + 129960000 = 18197^2 + 11400^2 .

It is a cyclic number.

It is not a de Polignac number, because 461090809 - 2¹³ = 461082617 is a prime.

It is not a weakly prime, because it can be changed into another prime (461096809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230545404 + 230545405.

It is an arithmetic number, because the mean of its divisors is an integer number (230545405).

Almost surely, 2^461090809 is an apocalyptic number.

It is an amenable number.

461090809 is a deficient number, since it is larger than the sum of its proper divisors (1).

461090809 is an equidigital number, since it uses as much as digits as its factorization.

461090809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 461090809 is about 21473.0251478454. The cubic root of 461090809 is about 772.5539578918.

The spelling of 461090809 in words is "four hundred sixty-one million, ninety thousand, eight hundred nine".