1340775065 has 8 divisors (see below), whose sum is σ = 1838777280. Its totient is φ = 919388592.

The previous prime is 1340775049. The next prime is 1340775103. The reversal of 1340775065 is 5605770431.

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

It is a cyclic number.

It is not a de Polignac number, because 1340775065 - 2⁴ = 1340775049 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19153895 + ... + 19153964.

It is an arithmetic number, because the mean of its divisors is an integer number (229847160).

Almost surely, 2^1340775065 is an apocalyptic number.

It is an amenable number.

1340775065 is a deficient number, since it is larger than the sum of its proper divisors (498002215).

1340775065 is an equidigital number, since it uses as much as digits as its factorization.

1340775065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38307871.

The product of its (nonzero) digits is 88200, while the sum is 38.

The square root of 1340775065 is about 36616.5954862000. The cubic root of 1340775065 is about 1102.6862898923.

The spelling of 1340775065 in words is "one billion, three hundred forty million, seven hundred seventy-five thousand, sixty-five".