1140233621 has 2 divisors, whose sum is σ = 1140233622. Its totient is φ = 1140233620.

The previous prime is 1140233609. The next prime is 1140233683. The reversal of 1140233621 is 1263320411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1104831121 + 35402500 = 33239^2 + 5950^2 .

It is an emirp because it is prime and its reverse (1263320411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1140233621 - 2²⁶ = 1073124757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1140236621) 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, 570116810 + 570116811.

It is an arithmetic number, because the mean of its divisors is an integer number (570116811).

Almost surely, 2^1140233621 is an apocalyptic number.

It is an amenable number.

1140233621 is a deficient number, since it is larger than the sum of its proper divisors (1).

1140233621 is an equidigital number, since it uses as much as digits as its factorization.

1140233621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 1140233621 is about 33767.3454834697. The cubic root of 1140233621 is about 1044.7152818193.

The spelling of 1140233621 in words is "one billion, one hundred forty million, two hundred thirty-three thousand, six hundred twenty-one".