1140323497 has 2 divisors, whose sum is σ = 1140323498. Its totient is φ = 1140323496.

The previous prime is 1140323419. The next prime is 1140323507. The reversal of 1140323497 is 7943230411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 714974121 + 425349376 = 26739^2 + 20624^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1140323497 is a prime.

It is not a weakly prime, because it can be changed into another prime (1140323897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 570161748 + 570161749.

It is an arithmetic number, because the mean of its divisors is an integer number (570161749).

Almost surely, 2^1140323497 is an apocalyptic number.

It is an amenable number.

1140323497 is a deficient number, since it is larger than the sum of its proper divisors (1).

1140323497 is an equidigital number, since it uses as much as digits as its factorization.

1140323497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 1140323497 is about 33768.6762695845. The cubic root of 1140323497 is about 1044.7427301018.

The spelling of 1140323497 in words is "one billion, one hundred forty million, three hundred twenty-three thousand, four hundred ninety-seven".