1363641269 has 2 divisors, whose sum is σ = 1363641270. Its totient is φ = 1363641268.

The previous prime is 1363641259. The next prime is 1363641283. The reversal of 1363641269 is 9621463631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1342343044 + 21298225 = 36638^2 + 4615^2 .

It is a cyclic number.

It is not a de Polignac number, because 1363641269 - 2²⁴ = 1346864053 is a prime.

It is a super-2 number, since 2×1363641269² = 3719035021039860722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1363641239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 681820634 + 681820635.

It is an arithmetic number, because the mean of its divisors is an integer number (681820635).

Almost surely, 2^1363641269 is an apocalyptic number.

It is an amenable number.

1363641269 is a deficient number, since it is larger than the sum of its proper divisors (1).

1363641269 is an equidigital number, since it uses as much as digits as its factorization.

1363641269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139968, while the sum is 41.

The square root of 1363641269 is about 36927.5137126777. The cubic root of 1363641269 is about 1108.9195636203.

The spelling of 1363641269 in words is "one billion, three hundred sixty-three million, six hundred forty-one thousand, two hundred sixty-nine".