1002955853 has 4 divisors (see below), whose sum is σ = 1003145628. Its totient is φ = 1002766080.

The previous prime is 1002955829. The next prime is 1002955859. The reversal of 1002955853 is 3585592001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 427579684 + 575376169 = 20678^2 + 23987^2 .

It is a cyclic number.

It is not a de Polignac number, because 1002955853 - 2²² = 998761549 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002955859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86726 + ... + 97607.

It is an arithmetic number, because the mean of its divisors is an integer number (250786407).

Almost surely, 2^1002955853 is an apocalyptic number.

It is an amenable number.

1002955853 is a deficient number, since it is larger than the sum of its proper divisors (189775).

1002955853 is an equidigital number, since it uses as much as digits as its factorization.

1002955853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189774.

The product of its (nonzero) digits is 54000, while the sum is 38.

The square root of 1002955853 is about 31669.4782558854. The cubic root of 1002955853 is about 1000.9843151391.

The spelling of 1002955853 in words is "one billion, two million, nine hundred fifty-five thousand, eight hundred fifty-three".