1355343065 has 4 divisors (see below), whose sum is σ = 1626411684. Its totient is φ = 1084274448.

The previous prime is 1355343061. The next prime is 1355343127. The reversal of 1355343065 is 5603435531.

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

It can be written as a sum of positive squares in 2 ways, for example, as 918574864 + 436768201 = 30308^2 + 20899^2 .

It is a cyclic number.

It is not a de Polignac number, because 1355343065 - 2² = 1355343061 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1355343061) 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, 135534302 + ... + 135534311.

It is an arithmetic number, because the mean of its divisors is an integer number (406602921).

Almost surely, 2^1355343065 is an apocalyptic number.

It is an amenable number.

1355343065 is a deficient number, since it is larger than the sum of its proper divisors (271068619).

1355343065 is an equidigital number, since it uses as much as digits as its factorization.

1355343065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271068618.

The product of its (nonzero) digits is 81000, while the sum is 35.

The square root of 1355343065 is about 36814.9842455487. The cubic root of 1355343065 is about 1106.6656057453.

Adding to 1355343065 its reverse (5603435531), we get a palindrome (6958778596).

The spelling of 1355343065 in words is "one billion, three hundred fifty-five million, three hundred forty-three thousand, sixty-five".