1140404171 has 2 divisors, whose sum is σ = 1140404172. Its totient is φ = 1140404170.

The previous prime is 1140404159. The next prime is 1140404219. The reversal of 1140404171 is 1714040411.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1140404171 is a prime.

It is not a weakly prime, because it can be changed into another prime (1140404371) 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, 570202085 + 570202086.

It is an arithmetic number, because the mean of its divisors is an integer number (570202086).

Almost surely, 2^1140404171 is an apocalyptic number.

1140404171 is a deficient number, since it is larger than the sum of its proper divisors (1).

1140404171 is an equidigital number, since it uses as much as digits as its factorization.

1140404171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 1140404171 is about 33769.8707578220. The cubic root of 1140404171 is about 1044.7673668497.

Adding to 1140404171 its reverse (1714040411), we get a palindrome (2854444582).

The spelling of 1140404171 in words is "one billion, one hundred forty million, four hundred four thousand, one hundred seventy-one".