1140229361 has 2 divisors, whose sum is σ = 1140229362. Its totient is φ = 1140229360.

The previous prime is 1140229351. The next prime is 1140229369. The reversal of 1140229361 is 1639220411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 727326961 + 412902400 = 26969^2 + 20320^2 .

It is a cyclic number.

It is not a de Polignac number, because 1140229361 - 2⁶ = 1140229297 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1140229369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 570114680 + 570114681.

It is an arithmetic number, because the mean of its divisors is an integer number (570114681).

Almost surely, 2^1140229361 is an apocalyptic number.

It is an amenable number.

1140229361 is a deficient number, since it is larger than the sum of its proper divisors (1).

1140229361 is an equidigital number, since it uses as much as digits as its factorization.

1140229361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 1140229361 is about 33767.2824047183. The cubic root of 1140229361 is about 1044.7139807723.

Adding to 1140229361 its reverse (1639220411), we get a palindrome (2779449772).

The spelling of 1140229361 in words is "one billion, one hundred forty million, two hundred twenty-nine thousand, three hundred sixty-one".