461353681 has 2 divisors, whose sum is σ = 461353682. Its totient is φ = 461353680.

The previous prime is 461353679. The next prime is 461353691. The reversal of 461353681 is 186353164.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 288694081 + 172659600 = 16991^2 + 13140^2 .

It is a cyclic number.

It is not a de Polignac number, because 461353681 - 2¹ = 461353679 is a prime.

It is a super-2 number, since 2×461353681² = 425694437944499522, which contains 22 as substring.

Together with 461353679, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 461353681.

It is not a weakly prime, because it can be changed into another prime (461353691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230676840 + 230676841.

It is an arithmetic number, because the mean of its divisors is an integer number (230676841).

Almost surely, 2^461353681 is an apocalyptic number.

It is an amenable number.

461353681 is a deficient number, since it is larger than the sum of its proper divisors (1).

461353681 is an equidigital number, since it uses as much as digits as its factorization.

461353681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 37.

The square root of 461353681 is about 21479.1452576680. The cubic root of 461353681 is about 772.7007433111.

The spelling of 461353681 in words is "four hundred sixty-one million, three hundred fifty-three thousand, six hundred eighty-one".