1086481681 has 2 divisors, whose sum is σ = 1086481682. Its totient is φ = 1086481680.

The previous prime is 1086481663. The next prime is 1086481687. The reversal of 1086481681 is 1861846801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 744416656 + 342065025 = 27284^2 + 18495^2 .

It is a cyclic number.

It is not a de Polignac number, because 1086481681 - 2¹¹ = 1086479633 is a prime.

It is a super-2 number, since 2×1086481681² = 2360884886297171522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1086481687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 543240840 + 543240841.

It is an arithmetic number, because the mean of its divisors is an integer number (543240841).

Almost surely, 2^1086481681 is an apocalyptic number.

It is an amenable number.

1086481681 is a deficient number, since it is larger than the sum of its proper divisors (1).

1086481681 is an equidigital number, since it uses as much as digits as its factorization.

1086481681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 73728, while the sum is 43.

The square root of 1086481681 is about 32961.8215667763. The cubic root of 1086481681 is about 1028.0339790153.

The spelling of 1086481681 in words is "one billion, eighty-six million, four hundred eighty-one thousand, six hundred eighty-one".