1140281 has 2 divisors, whose sum is σ = 1140282. Its totient is φ = 1140280.

The previous prime is 1140257. The next prime is 1140289. The reversal of 1140281 is 1820411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 614656 + 525625 = 784^2 + 725^2 .

It is a cyclic number.

It is not a de Polignac number, because 1140281 - 2¹⁴ = 1123897 is a prime.

It is a super-2 number, since 2×1140281² = 2600481517922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1140289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 570140 + 570141.

It is an arithmetic number, because the mean of its divisors is an integer number (570141).

2^1140281 is an apocalyptic number.

It is an amenable number.

1140281 is a deficient number, since it is larger than the sum of its proper divisors (1).

1140281 is an equidigital number, since it uses as much as digits as its factorization.

1140281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 1140281 is about 1067.8394074017. The cubic root of 1140281 is about 104.4729751626.

Adding to 1140281 its reverse (1820411), we get a palindrome (2960692).

The spelling of 1140281 in words is "one million, one hundred forty thousand, two hundred eighty-one".