1344032281 has 2 divisors, whose sum is σ = 1344032282. Its totient is φ = 1344032280.

The previous prime is 1344032267. The next prime is 1344032309. The reversal of 1344032281 is 1822304431.

It is an a-pointer prime, because the next prime (1344032309) can be obtained adding 1344032281 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 853808400 + 490223881 = 29220^2 + 22141^2 .

It is a cyclic number.

It is not a de Polignac number, because 1344032281 - 2⁹ = 1344031769 is a prime.

It is a super-2 number, since 2×1344032281² = 3612845544740125922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1344032681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672016140 + 672016141.

It is an arithmetic number, because the mean of its divisors is an integer number (672016141).

Almost surely, 2^1344032281 is an apocalyptic number.

It is an amenable number.

1344032281 is a deficient number, since it is larger than the sum of its proper divisors (1).

1344032281 is an equidigital number, since it uses as much as digits as its factorization.

1344032281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 1344032281 is about 36661.0458252353. The cubic root of 1344032281 is about 1103.5785058816.

The spelling of 1344032281 in words is "one billion, three hundred forty-four million, thirty-two thousand, two hundred eighty-one".