1140640027 has 2 divisors, whose sum is σ = 1140640028. Its totient is φ = 1140640026.

The previous prime is 1140639991. The next prime is 1140640043. The reversal of 1140640027 is 7200460411.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1140640027 - 2²⁷ = 1006422299 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1140639983 and 1140640010.

It is not a weakly prime, because it can be changed into another prime (1140640057) 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 as a sum of consecutive naturals, namely, 570320013 + 570320014.

It is an arithmetic number, because the mean of its divisors is an integer number (570320014).

Almost surely, 2^1140640027 is an apocalyptic number.

1140640027 is a deficient number, since it is larger than the sum of its proper divisors (1).

1140640027 is an equidigital number, since it uses as much as digits as its factorization.

1140640027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 1140640027 is about 33773.3626842220. The cubic root of 1140640027 is about 1044.8393874171.

The spelling of 1140640027 in words is "one billion, one hundred forty million, six hundred forty thousand, twenty-seven".