1355842 has 8 divisors (see below), whose sum is σ = 2038716. Its totient is φ = 676272.

The previous prime is 1355831. The next prime is 1355843. The reversal of 1355842 is 2485531.

It can be written as a sum of positive squares in 2 ways, for example, as 1347921 + 7921 = 1161^2 + 89^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 1355842.

It is not an unprimeable number, because it can be changed into a prime (1355843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1108 + ... + 1984.

2^1355842 is an apocalyptic number.

1355842 is a deficient number, since it is larger than the sum of its proper divisors (682874).

1355842 is an equidigital number, since it uses as much as digits as its factorization.

1355842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1652.

The product of its digits is 4800, while the sum is 28.

The square root of 1355842 is about 1164.4062864825. The cubic root of 1355842 is about 110.6801385996.

It can be divided in two parts, 1355 and 842, that added together give a cube (2197 = 13³).

The spelling of 1355842 in words is "one million, three hundred fifty-five thousand, eight hundred forty-two".