1340565 has 8 divisors (see below), whose sum is σ = 2144928. Its totient is φ = 714960.

The previous prime is 1340561. The next prime is 1340587. The reversal of 1340565 is 5650431.

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

It is not a de Polignac number, because 1340565 - 2² = 1340561 is a prime.

It is a super-2 number, since 2×1340565² = 3594229038450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44671 + ... + 44700.

It is an arithmetic number, because the mean of its divisors is an integer number (268116).

2^1340565 is an apocalyptic number.

1340565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1340565 is a deficient number, since it is larger than the sum of its proper divisors (804363).

1340565 is an equidigital number, since it uses as much as digits as its factorization.

1340565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89379.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 1340565 is about 1157.8277073900. The cubic root of 1340565 is about 110.2628699349.

Adding to 1340565 its reverse (5650431), we get a palindrome (6990996).

The spelling of 1340565 in words is "one million, three hundred forty thousand, five hundred sixty-five".