1382868481 has 2 divisors, whose sum is σ = 1382868482. Its totient is φ = 1382868480.

The previous prime is 1382868449. The next prime is 1382868499. The reversal of 1382868481 is 1848682831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1261670400 + 121198081 = 35520^2 + 11009^2 .

It is a cyclic number.

It is not a de Polignac number, because 1382868481 - 2⁵ = 1382868449 is a prime.

It is a super-2 number, since 2×1382868481² = 3824650471486494722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1382860481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 691434240 + 691434241.

It is an arithmetic number, because the mean of its divisors is an integer number (691434241).

Almost surely, 2^1382868481 is an apocalyptic number.

It is an amenable number.

1382868481 is a deficient number, since it is larger than the sum of its proper divisors (1).

1382868481 is an equidigital number, since it uses as much as digits as its factorization.

1382868481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 589824, while the sum is 49.

The square root of 1382868481 is about 37186.9396562826. The cubic root of 1382868481 is about 1114.1071447538.

The spelling of 1382868481 in words is "one billion, three hundred eighty-two million, eight hundred sixty-eight thousand, four hundred eighty-one".