1355043 has 4 divisors (see below), whose sum is σ = 1806728. Its totient is φ = 903360.

The previous prime is 1355021. The next prime is 1355047. The reversal of 1355043 is 3405531.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1355043 - 2¹⁰ = 1354019 is a prime.

It is a super-2 number, since 2×1355043² = 3672283063698, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1355047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 225838 + ... + 225843.

It is an arithmetic number, because the mean of its divisors is an integer number (451682).

2^1355043 is an apocalyptic number.

1355043 is a deficient number, since it is larger than the sum of its proper divisors (451685).

1355043 is an equidigital number, since it uses as much as digits as its factorization.

1355043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451684.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 1355043 is about 1164.0631426173. The cubic root of 1355043 is about 110.6583929961.

The spelling of 1355043 in words is "one million, three hundred fifty-five thousand, forty-three".