228132177 has 32 divisors (see below), whose sum is σ = 377287680. Its totient is φ = 119396160.

The previous prime is 228132169. The next prime is 228132199. The reversal of 228132177 is 771231822.

It is not a de Polignac number, because 228132177 - 2³ = 228132169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (228137177) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32574 + ... + 38952.

It is an arithmetic number, because the mean of its divisors is an integer number (11790240).

Almost surely, 2^228132177 is an apocalyptic number.

It is an amenable number.

228132177 is a deficient number, since it is larger than the sum of its proper divisors (149155503).

228132177 is a wasteful number, since it uses less digits than its factorization.

228132177 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6533.

The product of its digits is 9408, while the sum is 33.

The square root of 228132177 is about 15104.0450542231. The cubic root of 228132177 is about 611.0295049071.

Adding to 228132177 its reverse (771231822), we get a palindrome (999363999).

The spelling of 228132177 in words is "two hundred twenty-eight million, one hundred thirty-two thousand, one hundred seventy-seven".