1344648065 has 16 divisors (see below), whose sum is σ = 1709683200. Its totient is φ = 1011736320.

The previous prime is 1344648049. The next prime is 1344648073. The reversal of 1344648065 is 5608464431.

It is a happy number.

It is not a de Polignac number, because 1344648065 - 2⁴ = 1344648049 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139760 + ... + 149070.

It is an arithmetic number, because the mean of its divisors is an integer number (106855200).

Almost surely, 2^1344648065 is an apocalyptic number.

It is an amenable number.

1344648065 is a deficient number, since it is larger than the sum of its proper divisors (365035135).

1344648065 is a wasteful number, since it uses less digits than its factorization.

1344648065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11032.

The product of its (nonzero) digits is 276480, while the sum is 41.

The square root of 1344648065 is about 36669.4432054810. The cubic root of 1344648065 is about 1103.7470192522.

The spelling of 1344648065 in words is "one billion, three hundred forty-four million, six hundred forty-eight thousand, sixty-five".