1365340069 has 4 divisors (see below), whose sum is σ = 1367431596. Its totient is φ = 1363248544.

The previous prime is 1365340013. The next prime is 1365340079. The reversal of 1365340069 is 9600435631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9600435631 = 20249 ⋅474119.

It can be written as a sum of positive squares in 2 ways, for example, as 298011169 + 1067328900 = 17263^2 + 32670^2 .

It is a cyclic number.

It is not a de Polignac number, because 1365340069 - 2⁹ = 1365339557 is a prime.

It is a super-2 number, since 2×1365340069² = 3728307008033849522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1365340079) 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, 1044784 + ... + 1046089.

It is an arithmetic number, because the mean of its divisors is an integer number (341857899).

Almost surely, 2^1365340069 is an apocalyptic number.

It is an amenable number.

1365340069 is a deficient number, since it is larger than the sum of its proper divisors (2091527).

1365340069 is an equidigital number, since it uses as much as digits as its factorization.

1365340069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2091526.

The product of its (nonzero) digits is 58320, while the sum is 37.

The square root of 1365340069 is about 36950.5083726868. The cubic root of 1365340069 is about 1109.3798632746.

The spelling of 1365340069 in words is "one billion, three hundred sixty-five million, three hundred forty thousand, sixty-nine".