228105455 has 4 divisors (see below), whose sum is σ = 273726552. Its totient is φ = 182484360.

The previous prime is 228105433. The next prime is 228105461. The reversal of 228105455 is 554501822.

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

It is not a de Polignac number, because 228105455 - 2⁶ = 228105391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 22810541 + ... + 22810550.

It is an arithmetic number, because the mean of its divisors is an integer number (68431638).

Almost surely, 2^228105455 is an apocalyptic number.

228105455 is a deficient number, since it is larger than the sum of its proper divisors (45621097).

228105455 is an equidigital number, since it uses as much as digits as its factorization.

228105455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45621096.

The product of its (nonzero) digits is 16000, while the sum is 32.

The square root of 228105455 is about 15103.1604308502. The cubic root of 228105455 is about 611.0056465629.

The spelling of 228105455 in words is "two hundred twenty-eight million, one hundred five thousand, four hundred fifty-five".