228471153 has 4 divisors (see below), whose sum is σ = 304628208. Its totient is φ = 152314100.

The previous prime is 228471149. The next prime is 228471161. The reversal of 228471153 is 351174822.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 228471153 - 2² = 228471149 is a prime.

It is not an unprimeable number, because it can be changed into a prime (228471163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38078523 + ... + 38078528.

It is an arithmetic number, because the mean of its divisors is an integer number (76157052).

Almost surely, 2^228471153 is an apocalyptic number.

It is an amenable number.

228471153 is a deficient number, since it is larger than the sum of its proper divisors (76157055).

228471153 is an equidigital number, since it uses as much as digits as its factorization.

228471153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76157054.

The product of its digits is 13440, while the sum is 33.

The square root of 228471153 is about 15115.2622537619. The cubic root of 228471153 is about 611.3319930491.

It can be divided in two parts, 2284 and 71153, that added together give a palindrome (73437).

The spelling of 228471153 in words is "two hundred twenty-eight million, four hundred seventy-one thousand, one hundred fifty-three".