228161154 has 48 divisors (see below), whose sum is σ = 511228800. Its totient is φ = 67773888.

The previous prime is 228161149. The next prime is 228161159. The reversal of 228161154 is 451161822.

228161154 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (228161149) and next prime (228161159).

It is a super-2 number, since 2×228161154² = 104115024389223432, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (228161159) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25527 + ... + 33285.

It is an arithmetic number, because the mean of its divisors is an integer number (10650600).

Almost surely, 2^228161154 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228161154, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255614400).

228161154 is an abundant number, since it is smaller than the sum of its proper divisors (283067646).

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

228161154 is a wasteful number, since it uses less digits than its factorization.

228161154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7819 (or 7806 counting only the distinct ones).

The product of its digits is 3840, while the sum is 30.

The square root of 228161154 is about 15105.0042701086. The cubic root of 228161154 is about 611.0553744894.

The spelling of 228161154 in words is "two hundred twenty-eight million, one hundred sixty-one thousand, one hundred fifty-four".