1355439 has 8 divisors (see below), whose sum is σ = 1817392. Its totient is φ = 898560.

The previous prime is 1355429. The next prime is 1355443. The reversal of 1355439 is 9345531.

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

It is not a de Polignac number, because 1355439 - 2⁴ = 1355423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1355429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 592 + ... + 1749.

It is an arithmetic number, because the mean of its divisors is an integer number (227174).

2^1355439 is an apocalyptic number.

1355439 is a deficient number, since it is larger than the sum of its proper divisors (461953).

1355439 is a wasteful number, since it uses less digits than its factorization.

1355439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2537.

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

The square root of 1355439 is about 1164.2332240578. The cubic root of 1355439 is about 110.6691716099.

The spelling of 1355439 in words is "one million, three hundred fifty-five thousand, four hundred thirty-nine".