1002535605289 has 3 divisors (see below), whose sum is σ = 1002536606557. Its totient is φ = 1002534604022.

The previous prime is 1002535605287. The next prime is 1002535605307. The reversal of 1002535605289 is 9825065352001.

The square root of 1002535605289 is 1001267.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 1002535605289 - 2¹ = 1002535605287 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1002535605287) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 500634 + ... + 1501900.

Almost surely, 2^{1002535605289} is an apocalyptic number.

1002535605289 is the 1001267-th square number.

1002535605289 is the 500634-th centered octagonal number.

It is an amenable number.

1002535605289 is a deficient number, since it is larger than the sum of its proper divisors (1001268).

1002535605289 is an frugal number, since it uses more digits than its factorization.

1002535605289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2002534 (or 1001267 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 46.

It can be divided in two parts, 1002535 and 605289, that added together give a square (1607824 = 1268²).

The spelling of 1002535605289 in words is "one trillion, two billion, five hundred thirty-five million, six hundred five thousand, two hundred eighty-nine".