229028181 has 8 divisors (see below), whose sum is σ = 318648000. Its totient is φ = 146046912.

The previous prime is 229028171. The next prime is 229028183. The reversal of 229028181 is 181820922.

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

It is not a de Polignac number, because 229028181 - 2⁷ = 229028053 is a prime.

It is a super-2 number, since 2×229028181² = 104907815384337522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229028183) 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, 1659556 + ... + 1659693.

It is an arithmetic number, because the mean of its divisors is an integer number (39831000).

Almost surely, 2^229028181 is an apocalyptic number.

It is an amenable number.

229028181 is a deficient number, since it is larger than the sum of its proper divisors (89619819).

229028181 is a wasteful number, since it uses less digits than its factorization.

229028181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3319275.

The product of its (nonzero) digits is 4608, while the sum is 33.

The square root of 229028181 is about 15133.6770482259. The cubic root of 229028181 is about 611.8284126379.

The spelling of 229028181 in words is "two hundred twenty-nine million, twenty-eight thousand, one hundred eighty-one".