1002255102 has 12 divisors (see below), whose sum is σ = 2171552760. Its totient is φ = 334085028.

The previous prime is 1002255097. The next prime is 1002255139. The reversal of 1002255102 is 2015522001.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 55680839 = 1002255102 / (1 + 0 + 0 + 2 + 2 + 5 + 5 + 1 + 0 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27840402 + ... + 27840437.

It is an arithmetic number, because the mean of its divisors is an integer number (180962730).

Almost surely, 2^1002255102 is an apocalyptic number.

1002255102 is an abundant number, since it is smaller than the sum of its proper divisors (1169297658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1002255102 is a wasteful number, since it uses less digits than its factorization.

1002255102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55680847 (or 55680844 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 1002255102 is about 31658.4128155535. The cubic root of 1002255102 is about 1000.7511363196.

Adding to 1002255102 its reverse (2015522001), we get a palindrome (3017777103).

The spelling of 1002255102 in words is "one billion, two million, two hundred fifty-five thousand, one hundred two".