1363888069 has 2 divisors, whose sum is σ = 1363888070. Its totient is φ = 1363888068.

The previous prime is 1363888049. The next prime is 1363888079. The reversal of 1363888069 is 9608883631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1291467969 + 72420100 = 35937^2 + 8510^2 .

It is a cyclic number.

It is not a de Polignac number, because 1363888069 - 2⁵ = 1363888037 is a prime.

It is a super-2 number, since 2×1363888069² = 3720381329521097522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1363888049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 681944034 + 681944035.

It is an arithmetic number, because the mean of its divisors is an integer number (681944035).

Almost surely, 2^1363888069 is an apocalyptic number.

It is an amenable number.

1363888069 is a deficient number, since it is larger than the sum of its proper divisors (1).

1363888069 is an equidigital number, since it uses as much as digits as its factorization.

1363888069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1492992, while the sum is 52.

The square root of 1363888069 is about 36930.8552432786. The cubic root of 1363888069 is about 1108.9864592293.

The spelling of 1363888069 in words is "one billion, three hundred sixty-three million, eight hundred eighty-eight thousand, sixty-nine".