1144036681 has 2 divisors, whose sum is σ = 1144036682. Its totient is φ = 1144036680.

The previous prime is 1144036669. The next prime is 1144036693. The reversal of 1144036681 is 1866304411.

It is a balanced prime because it is at equal distance from previous prime (1144036669) and next prime (1144036693).

It can be written as a sum of positive squares in only one way, i.e., 1032015625 + 112021056 = 32125^2 + 10584^2 .

It is a cyclic number.

It is not a de Polignac number, because 1144036681 - 2¹⁹ = 1143512393 is a prime.

It is a super-2 number, since 2×1144036681² = 2617639854946991522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1144036651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572018340 + 572018341.

It is an arithmetic number, because the mean of its divisors is an integer number (572018341).

Almost surely, 2^1144036681 is an apocalyptic number.

It is an amenable number.

1144036681 is a deficient number, since it is larger than the sum of its proper divisors (1).

1144036681 is an equidigital number, since it uses as much as digits as its factorization.

1144036681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 1144036681 is about 33823.6112944789. The cubic root of 1144036681 is about 1045.8754843636.

The spelling of 1144036681 in words is "one billion, one hundred forty-four million, thirty-six thousand, six hundred eighty-one".