1140042539 has 2 divisors, whose sum is σ = 1140042540. Its totient is φ = 1140042538.

The previous prime is 1140042517. The next prime is 1140042583. The reversal of 1140042539 is 9352400411.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1140042539 is a prime.

It is not a weakly prime, because it can be changed into another prime (1140042509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 570021269 + 570021270.

It is an arithmetic number, because the mean of its divisors is an integer number (570021270).

Almost surely, 2^1140042539 is an apocalyptic number.

1140042539 is a deficient number, since it is larger than the sum of its proper divisors (1).

1140042539 is an equidigital number, since it uses as much as digits as its factorization.

1140042539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 1140042539 is about 33764.5159746145. The cubic root of 1140042539 is about 1044.6569202595.

The spelling of 1140042539 in words is "one billion, one hundred forty million, forty-two thousand, five hundred thirty-nine".