1355863 has 2 divisors, whose sum is σ = 1355864. Its totient is φ = 1355862.

The previous prime is 1355857. The next prime is 1355867. The reversal of 1355863 is 3685531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1355863 - 2⁵ = 1355831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1355867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 677931 + 677932.

It is an arithmetic number, because the mean of its divisors is an integer number (677932).

2^1355863 is an apocalyptic number.

1355863 is a deficient number, since it is larger than the sum of its proper divisors (1).

1355863 is an equidigital number, since it uses as much as digits as its factorization.

1355863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10800, while the sum is 31.

The square root of 1355863 is about 1164.4153039187. The cubic root of 1355863 is about 110.6807100209.

The spelling of 1355863 in words is "one million, three hundred fifty-five thousand, eight hundred sixty-three".