1355943 has 8 divisors (see below), whose sum is σ = 1814400. Its totient is φ = 900728.

The previous prime is 1355941. The next prime is 1355947. The reversal of 1355943 is 3495531.

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 1355943 - 2¹ = 1355941 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1355943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1355941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 448 + ... + 1706.

It is an arithmetic number, because the mean of its divisors is an integer number (226800).

2^1355943 is an apocalyptic number.

1355943 is a deficient number, since it is larger than the sum of its proper divisors (458457).

1355943 is a wasteful number, since it uses less digits than its factorization.

1355943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1621.

The product of its digits is 8100, while the sum is 30.

The square root of 1355943 is about 1164.4496554167. The cubic root of 1355943 is about 110.6828868098.

The spelling of 1355943 in words is "one million, three hundred fifty-five thousand, nine hundred forty-three".