1358863 has 16 divisors (see below), whose sum is σ = 1596672. Its totient is φ = 1144000.

The previous prime is 1358857. The next prime is 1358881. The reversal of 1358863 is 3688531.

It is a happy number.

It is not a de Polignac number, because 1358863 - 2⁵ = 1358831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1358803) 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 in 15 ways as a sum of consecutive naturals, for example, 10308 + ... + 10438.

It is an arithmetic number, because the mean of its divisors is an integer number (99792).

2^1358863 is an apocalyptic number.

1358863 is a deficient number, since it is larger than the sum of its proper divisors (237809).

1358863 is a wasteful number, since it uses less digits than its factorization.

With its successor (1358864) it forms an eRAP, since the sums of their prime factors are consecutive (206 and 207).

1358863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206.

The product of its digits is 17280, while the sum is 34.

The square root of 1358863 is about 1165.7027923103. The cubic root of 1358863 is about 110.7622810786.

It can be divided in two parts, 135 and 8863, that added together give a palindrome (8998).

The spelling of 1358863 in words is "one million, three hundred fifty-eight thousand, eight hundred sixty-three".