1002635065 has 12 divisors (see below), whose sum is σ = 1236567276. Its totient is φ = 780424128.

The previous prime is 1002635041. The next prime is 1002635131. The reversal of 1002635065 is 5605362001.

1002635065 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 255104784 + 747530281 = 15972^2 + 27341^2 .

It is not a de Polignac number, because 1002635065 - 2¹¹ = 1002633017 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66394 + ... + 80083.

It is an arithmetic number, because the mean of its divisors is an integer number (103047273).

Almost surely, 2^1002635065 is an apocalyptic number.

It is an amenable number.

1002635065 is a deficient number, since it is larger than the sum of its proper divisors (233932211).

1002635065 is an equidigital number, since it uses as much as digits as its factorization.

1002635065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146556 (or 146519 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 1002635065 is about 31664.4132268387. The cubic root of 1002635065 is about 1000.8775846199.

Adding to 1002635065 its reverse (5605362001), we get a palindrome (6607997066).

The spelling of 1002635065 in words is "one billion, two million, six hundred thirty-five thousand, sixty-five".