461105681 has 4 divisors (see below), whose sum is σ = 464200500. Its totient is φ = 458010864.

The previous prime is 461105677. The next prime is 461105731. The reversal of 461105681 is 186501164.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 201895681 + 259210000 = 14209^2 + 16100^2 .

It is a cyclic number.

It is not a de Polignac number, because 461105681 - 2² = 461105677 is a prime.

It is a super-2 number, since 2×461105681² = 425236898100947522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (461104681) 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 3 ways as a sum of consecutive naturals, for example, 1547186 + ... + 1547483.

It is an arithmetic number, because the mean of its divisors is an integer number (116050125).

Almost surely, 2^461105681 is an apocalyptic number.

It is an amenable number.

461105681 is a deficient number, since it is larger than the sum of its proper divisors (3094819).

461105681 is a wasteful number, since it uses less digits than its factorization.

461105681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3094818.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 461105681 is about 21473.3714399952. The cubic root of 461105681 is about 772.5622637748.

The spelling of 461105681 in words is "four hundred sixty-one million, one hundred five thousand, six hundred eighty-one".