202228161 has 8 divisors (see below), whose sum is σ = 270757344. Its totient is φ = 134258880.

The previous prime is 202228151. The next prime is 202228163. The reversal of 202228161 is 161822202.

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

It is not a de Polignac number, because 202228161 - 2¹⁵ = 202195393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (202228163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139131 + ... + 140576.

It is an arithmetic number, because the mean of its divisors is an integer number (33844668).

Almost surely, 2^202228161 is an apocalyptic number.

It is an amenable number.

202228161 is a deficient number, since it is larger than the sum of its proper divisors (68529183).

202228161 is a wasteful number, since it uses less digits than its factorization.

202228161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279951.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 202228161 is about 14220.6948142487. The cubic root of 202228161 is about 586.9672596900.

The spelling of 202228161 in words is "two hundred two million, two hundred twenty-eight thousand, one hundred sixty-one".