1285002002 has 8 divisors (see below), whose sum is σ = 1942680576. Its totient is φ = 637441812.

The previous prime is 1285001999. The next prime is 1285002029. The reversal of 1285002002 is 2002005821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2529278 + ... + 2529785.

It is an arithmetic number, because the mean of its divisors is an integer number (242835072).

Almost surely, 2^1285002002 is an apocalyptic number.

1285002002 is a deficient number, since it is larger than the sum of its proper divisors (657678574).

1285002002 is a wasteful number, since it uses less digits than its factorization.

1285002002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5059192.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 1285002002 is about 35846.9245821730. The cubic root of 1285002002 is about 1087.1795335650.

Adding to 1285002002 its reverse (2002005821), we get a palindrome (3287007823).

The spelling of 1285002002 in words is "one billion, two hundred eighty-five million, two thousand, two".