228163955 has 4 divisors (see below), whose sum is σ = 273796752. Its totient is φ = 182531160.

The previous prime is 228163907. The next prime is 228163963. The reversal of 228163955 is 559361822.

228163955 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 228163955 - 2⁸ = 228163699 is a prime.

It is a super-2 number, since 2×228163955² = 104117580722484050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22816391 + ... + 22816400.

It is an arithmetic number, because the mean of its divisors is an integer number (68449188).

Almost surely, 2^228163955 is an apocalyptic number.

228163955 is a deficient number, since it is larger than the sum of its proper divisors (45632797).

228163955 is an equidigital number, since it uses as much as digits as its factorization.

228163955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45632796.

The product of its digits is 129600, while the sum is 41.

The square root of 228163955 is about 15105.0969874410. The cubic root of 228163955 is about 611.0578750014.

The spelling of 228163955 in words is "two hundred twenty-eight million, one hundred sixty-three thousand, nine hundred fifty-five".