990102853 has 4 divisors (see below), whose sum is σ = 990165888. Its totient is φ = 990039820.

The previous prime is 990102851. The next prime is 990102857. The reversal of 990102853 is 358201099.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 358201099 = 3203 ⋅111833.

It is a cyclic number.

It is not a de Polignac number, because 990102853 - 2¹ = 990102851 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 (990102851) 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, 13068 + ... + 46378.

It is an arithmetic number, because the mean of its divisors is an integer number (247541472).

Almost surely, 2^990102853 is an apocalyptic number.

It is an amenable number.

990102853 is a deficient number, since it is larger than the sum of its proper divisors (63035).

990102853 is a wasteful number, since it uses less digits than its factorization.

990102853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63034.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 990102853 is about 31465.8998441170. The cubic root of 990102853 is about 996.6900070347.

The spelling of 990102853 in words is "nine hundred ninety million, one hundred two thousand, eight hundred fifty-three".