1363655489 has 16 divisors (see below), whose sum is σ = 1585814400. Its totient is φ = 1148425344.

The previous prime is 1363655483. The next prime is 1363655519. The reversal of 1363655489 is 9845563631.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1363655489 - 2²⁸ = 1095220033 is a prime.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1363655483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 188267 + ... + 195375.

It is an arithmetic number, because the mean of its divisors is an integer number (99113400).

Almost surely, 2^1363655489 is an apocalyptic number.

It is an amenable number.

1363655489 is a deficient number, since it is larger than the sum of its proper divisors (222158911).

1363655489 is an equidigital number, since it uses as much as digits as its factorization.

1363655489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7592.

The product of its digits is 2332800, while the sum is 50.

The square root of 1363655489 is about 36927.7062515396. The cubic root of 1363655489 is about 1108.9234181975.

The spelling of 1363655489 in words is "one billion, three hundred sixty-three million, six hundred fifty-five thousand, four hundred eighty-nine".