1363645 has 8 divisors (see below), whose sum is σ = 1645056. Its totient is φ = 1085136.

The previous prime is 1363631. The next prime is 1363673. The reversal of 1363645 is 5463631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1363645 - 2⁹ = 1363133 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 504 + ... + 1726.

It is an arithmetic number, because the mean of its divisors is an integer number (205632).

2^1363645 is an apocalyptic number.

It is an amenable number.

1363645 is a deficient number, since it is larger than the sum of its proper divisors (281411).

1363645 is a wasteful number, since it uses less digits than its factorization.

1363645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1451.

The product of its digits is 6480, while the sum is 28.

The square root of 1363645 is about 1167.7521141064. The cubic root of 1363645 is about 110.8920574975.

The spelling of 1363645 in words is "one million, three hundred sixty-three thousand, six hundred forty-five".