1363513 has 2 divisors, whose sum is σ = 1363514. Its totient is φ = 1363512.

The previous prime is 1363511. The next prime is 1363541. The reversal of 1363513 is 3153631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 710649 + 652864 = 843^2 + 808^2 .

It is a cyclic number.

It is not a de Polignac number, because 1363513 - 2¹ = 1363511 is a prime.

Together with 1363511, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1363511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 681756 + 681757.

It is an arithmetic number, because the mean of its divisors is an integer number (681757).

2^1363513 is an apocalyptic number.

It is an amenable number.

1363513 is a deficient number, since it is larger than the sum of its proper divisors (1).

1363513 is an equidigital number, since it uses as much as digits as its factorization.

1363513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 810, while the sum is 22.

The square root of 1363513 is about 1167.6955938942. The cubic root of 1363513 is about 110.8884792877. Note that the first 3 decimals are identical.

The spelling of 1363513 in words is "one million, three hundred sixty-three thousand, five hundred thirteen".