202142885 has 12 divisors (see below), whose sum is σ = 282175308. Its totient is φ = 138612096.

The previous prime is 202142867. The next prime is 202142887. The reversal of 202142885 is 588241202.

It can be written as a sum of positive squares in 2 ways, for example, as 48804196 + 153338689 = 6986^2 + 12383^2 .

It is not a de Polignac number, because 202142885 - 2⁶ = 202142821 is a prime.

It is a super-2 number, since 2×202142885² = 81723491912246450, which contains 22 as substring.

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 (202142887) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 412292 + ... + 412781.

It is an arithmetic number, because the mean of its divisors is an integer number (23514609).

Almost surely, 2^202142885 is an apocalyptic number.

It is an amenable number.

202142885 is a deficient number, since it is larger than the sum of its proper divisors (80032423).

202142885 is an equidigital number, since it uses as much as digits as its factorization.

202142885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825092 (or 825085 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 32.

The square root of 202142885 is about 14217.6961917183. The cubic root of 202142885 is about 586.8847435572.

The spelling of 202142885 in words is "two hundred two million, one hundred forty-two thousand, eight hundred eighty-five".