1363489853 has 4 divisors (see below), whose sum is σ = 1487443488. Its totient is φ = 1239536220.

The previous prime is 1363489817. The next prime is 1363489867. The reversal of 1363489853 is 3589843631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3589843631 = 11 ⋅326349421.

It is a cyclic number.

It is not a de Polignac number, because 1363489853 - 2²⁴ = 1346712637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1363089853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61976801 + ... + 61976822.

It is an arithmetic number, because the mean of its divisors is an integer number (371860872).

Almost surely, 2^1363489853 is an apocalyptic number.

It is an amenable number.

1363489853 is a deficient number, since it is larger than the sum of its proper divisors (123953635).

1363489853 is a wasteful number, since it uses less digits than its factorization.

1363489853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123953634.

The product of its digits is 1866240, while the sum is 50.

The square root of 1363489853 is about 36925.4634771183. The cubic root of 1363489853 is about 1108.8785180307.

The spelling of 1363489853 in words is "one billion, three hundred sixty-three million, four hundred eighty-nine thousand, eight hundred fifty-three".