161010228 has 24 divisors (see below), whose sum is σ = 375919488. Its totient is φ = 53637376.

The previous prime is 161010221. The next prime is 161010229. The reversal of 161010228 is 822010161.

It is a super-2 number, since 2×161010228² = 51848587041223968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161010221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24325 + ... + 30227.

It is an arithmetic number, because the mean of its divisors is an integer number (15663312).

Almost surely, 2^161010228 is an apocalyptic number.

It is an amenable number.

161010228 is an abundant number, since it is smaller than the sum of its proper divisors (214909260).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161010228 is a wasteful number, since it uses less digits than its factorization.

161010228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8183 (or 8181 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 161010228 is about 12688.9805737104. The cubic root of 161010228 is about 544.0237022905.

Adding to 161010228 its reverse (822010161), we get a palindrome (983020389).

The spelling of 161010228 in words is "one hundred sixty-one million, ten thousand, two hundred twenty-eight".