1081291327 has 2 divisors, whose sum is σ = 1081291328. Its totient is φ = 1081291326.

The previous prime is 1081291291. The next prime is 1081291357. The reversal of 1081291327 is 7231921801.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1081291327 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1081291292 and 1081291301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1081291357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 540645663 + 540645664.

It is an arithmetic number, because the mean of its divisors is an integer number (540645664).

Almost surely, 2^1081291327 is an apocalyptic number.

1081291327 is a deficient number, since it is larger than the sum of its proper divisors (1).

1081291327 is an equidigital number, since it uses as much as digits as its factorization.

1081291327 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 1081291327 is about 32882.9944956356. The cubic root of 1081291327 is about 1026.3943196029.

The spelling of 1081291327 in words is "one billion, eighty-one million, two hundred ninety-one thousand, three hundred twenty-seven".