1140232609 has 2 divisors, whose sum is σ = 1140232610. Its totient is φ = 1140232608.

The previous prime is 1140232573. The next prime is 1140232633. The reversal of 1140232609 is 9062320411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1087350625 + 52881984 = 32975^2 + 7272^2 .

It is a cyclic number.

It is not a de Polignac number, because 1140232609 - 2¹⁹ = 1139708321 is a prime.

It is not a weakly prime, because it can be changed into another prime (1140232309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 570116304 + 570116305.

It is an arithmetic number, because the mean of its divisors is an integer number (570116305).

Almost surely, 2^1140232609 is an apocalyptic number.

It is an amenable number.

1140232609 is a deficient number, since it is larger than the sum of its proper divisors (1).

1140232609 is an equidigital number, since it uses as much as digits as its factorization.

1140232609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 1140232609 is about 33767.3304985751. The cubic root of 1140232609 is about 1044.7149727445.

The spelling of 1140232609 in words is "one billion, one hundred forty million, two hundred thirty-two thousand, six hundred nine".