1335640565 has 32 divisors (see below), whose sum is σ = 1862058240. Its totient is φ = 900808704.

The previous prime is 1335640531. The next prime is 1335640589. The reversal of 1335640565 is 5650465331.

1335640565 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 1335640565 - 2¹² = 1335636469 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 745691 + ... + 747479.

It is an arithmetic number, because the mean of its divisors is an integer number (58189320).

Almost surely, 2^1335640565 is an apocalyptic number.

It is an amenable number.

1335640565 is a deficient number, since it is larger than the sum of its proper divisors (526417675).

1335640565 is a wasteful number, since it uses less digits than its factorization.

1335640565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2141.

The product of its (nonzero) digits is 162000, while the sum is 38.

The square root of 1335640565 is about 36546.4165822041. The cubic root of 1335640565 is about 1101.2769097171.

The spelling of 1335640565 in words is "one billion, three hundred thirty-five million, six hundred forty thousand, five hundred sixty-five".