1002145535509 has 16 divisors (see below), whose sum is σ = 1054782720000. Its totient is φ = 950864488560.

The previous prime is 1002145535491. The next prime is 1002145535513. The reversal of 1002145535509 is 9055355412001.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1002145535509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002145535519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29659 + ... + 1416040.

It is an arithmetic number, because the mean of its divisors is an integer number (65923920000).

Almost surely, 2^{1002145535509} is an apocalyptic number.

It is an amenable number.

1002145535509 is a deficient number, since it is larger than the sum of its proper divisors (52637184491).

1002145535509 is a wasteful number, since it uses less digits than its factorization.

1002145535509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1446168.

The product of its (nonzero) digits is 135000, while the sum is 40.

The spelling of 1002145535509 in words is "one trillion, two billion, one hundred forty-five million, five hundred thirty-five thousand, five hundred nine".