228161577 has 16 divisors (see below), whose sum is σ = 350755200. Its totient is φ = 129222912.

The previous prime is 228161561. The next prime is 228161621. The reversal of 228161577 is 775161822.

228161577 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 228161577 - 2⁴ = 228161561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (228161537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45702 + ... + 50447.

It is an arithmetic number, because the mean of its divisors is an integer number (21922200).

Almost surely, 2^228161577 is an apocalyptic number.

It is an amenable number.

228161577 is a deficient number, since it is larger than the sum of its proper divisors (122593623).

228161577 is a wasteful number, since it uses less digits than its factorization.

228161577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96272.

The product of its digits is 47040, while the sum is 39.

The square root of 228161577 is about 15105.0182720843. The cubic root of 228161577 is about 611.0557521117.

The spelling of 228161577 in words is "two hundred twenty-eight million, one hundred sixty-one thousand, five hundred seventy-seven".