228105959 has 4 divisors (see below), whose sum is σ = 229771104. Its totient is φ = 226440816.

The previous prime is 228105931. The next prime is 228105979. The reversal of 228105959 is 959501822.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228105959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228105979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 832367 + ... + 832640.

It is an arithmetic number, because the mean of its divisors is an integer number (57442776).

Almost surely, 2^228105959 is an apocalyptic number.

228105959 is a deficient number, since it is larger than the sum of its proper divisors (1665145).

228105959 is a wasteful number, since it uses less digits than its factorization.

228105959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1665144.

The product of its (nonzero) digits is 64800, while the sum is 41.

The square root of 228105959 is about 15103.1771160905. The cubic root of 228105959 is about 611.0060965691.

The spelling of 228105959 in words is "two hundred twenty-eight million, one hundred five thousand, nine hundred fifty-nine".