1140404431 has 2 divisors, whose sum is σ = 1140404432. Its totient is φ = 1140404430.

The previous prime is 1140404411. The next prime is 1140404443. The reversal of 1140404431 is 1344040411.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1140404431 - 2²⁹ = 603533519 is a prime.

It is a super-2 number, since 2×1140404431² = 2601044532488867522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1140404401) 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, 570202215 + 570202216.

It is an arithmetic number, because the mean of its divisors is an integer number (570202216).

Almost surely, 2^1140404431 is an apocalyptic number.

1140404431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1140404431 is an equidigital number, since it uses as much as digits as its factorization.

1140404431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 1140404431 is about 33769.8746074071. The cubic root of 1140404431 is about 1044.7674462483.

Adding to 1140404431 its reverse (1344040411), we get a palindrome (2484444842).

The spelling of 1140404431 in words is "one billion, one hundred forty million, four hundred four thousand, four hundred thirty-one".