1080326581 has 2 divisors, whose sum is σ = 1080326582. Its totient is φ = 1080326580.

The previous prime is 1080326563. The next prime is 1080326617. The reversal of 1080326581 is 1856230801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 615536100 + 464790481 = 24810^2 + 21559^2 .

It is a cyclic number.

It is not a de Polignac number, because 1080326581 - 2⁵ = 1080326549 is a prime.

It is a super-2 number, since 2×1080326581² = 2334211043230299122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1080326561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 540163290 + 540163291.

It is an arithmetic number, because the mean of its divisors is an integer number (540163291).

Almost surely, 2^1080326581 is an apocalyptic number.

It is an amenable number.

1080326581 is a deficient number, since it is larger than the sum of its proper divisors (1).

1080326581 is an equidigital number, since it uses as much as digits as its factorization.

1080326581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 1080326581 is about 32868.3218464223. The cubic root of 1080326581 is about 1026.0889734458.

The spelling of 1080326581 in words is "one billion, eighty million, three hundred twenty-six thousand, five hundred eighty-one".