1140571 has 2 divisors, whose sum is σ = 1140572. Its totient is φ = 1140570.

The previous prime is 1140569. The next prime is 1140577. The reversal of 1140571 is 1750411.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1140571 - 2¹ = 1140569 is a prime.

Together with 1140569, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1140577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 570285 + 570286.

It is an arithmetic number, because the mean of its divisors is an integer number (570286).

2^1140571 is an apocalyptic number.

1140571 is a deficient number, since it is larger than the sum of its proper divisors (1).

1140571 is an equidigital number, since it uses as much as digits as its factorization.

1140571 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 140, while the sum is 19.

The square root of 1140571 is about 1067.9751869777. The cubic root of 1140571 is about 104.4818310483.

Adding to 1140571 its reverse (1750411), we get a palindrome (2890982).

It can be divided in two parts, 11405 and 71, that added together give a triangular number (11476 = T₁₅₁).

The spelling of 1140571 in words is "one million, one hundred forty thousand, five hundred seventy-one".