202002281 has 8 divisors (see below), whose sum is σ = 228990720. Its totient is φ = 176649552.

The previous prime is 202002259. The next prime is 202002299. The reversal of 202002281 is 182200202.

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

It is a cyclic number.

It is not a de Polignac number, because 202002281 - 2¹⁴ = 201985897 is a prime.

It is a super-2 number, since 2×202002281² = 81609843058405922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202002481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 408665 + ... + 409158.

It is an arithmetic number, because the mean of its divisors is an integer number (28623840).

Almost surely, 2^202002281 is an apocalyptic number.

It is an amenable number.

202002281 is a deficient number, since it is larger than the sum of its proper divisors (26988439).

202002281 is a wasteful number, since it uses less digits than its factorization.

202002281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817855.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 202002281 is about 14212.7506486253. The cubic root of 202002281 is about 586.7486393650.

Adding to 202002281 its reverse (182200202), we get a palindrome (384202483).

The spelling of 202002281 in words is "two hundred two million, two thousand, two hundred eighty-one".