1355065 has 4 divisors (see below), whose sum is σ = 1626084. Its totient is φ = 1084048.

The previous prime is 1355063. The next prime is 1355071. The reversal of 1355065 is 5605531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5605531 = 59 ⋅95009.

It can be written as a sum of positive squares in 2 ways, for example, as 473344 + 881721 = 688^2 + 939^2 .

It is a cyclic number.

It is not a de Polignac number, because 1355065 - 2¹ = 1355063 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (1355063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135502 + ... + 135511.

It is an arithmetic number, because the mean of its divisors is an integer number (406521).

2^1355065 is an apocalyptic number.

It is an amenable number.

1355065 is a deficient number, since it is larger than the sum of its proper divisors (271019).

1355065 is an equidigital number, since it uses as much as digits as its factorization.

1355065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271018.

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 1355065 is about 1164.0725922381. The cubic root of 1355065 is about 110.6589918630.

The spelling of 1355065 in words is "one million, three hundred fifty-five thousand, sixty-five".