228423153 has 24 divisors (see below), whose sum is σ = 356309280. Its totient is φ = 129783360.

The previous prime is 228423133. The next prime is 228423191. The reversal of 228423153 is 351324822.

It is not a de Polignac number, because 228423153 - 2¹² = 228419057 is a prime.

It is a super-2 number, since 2×228423153² = 104354273652922818, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 228423153.

It is not an unprimeable number, because it can be changed into a prime (228423103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21973 + ... + 30653.

It is an arithmetic number, because the mean of its divisors is an integer number (14846220).

Almost surely, 2^228423153 is an apocalyptic number.

It is an amenable number.

228423153 is a deficient number, since it is larger than the sum of its proper divisors (127886127).

228423153 is a wasteful number, since it uses less digits than its factorization.

228423153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8877 (or 8870 counting only the distinct ones).

The product of its digits is 11520, while the sum is 30.

The square root of 228423153 is about 15113.6743712441. The cubic root of 228423153 is about 611.2891780292.

Adding to 228423153 its reverse (351324822), we get a palindrome (579747975).

The spelling of 228423153 in words is "two hundred twenty-eight million, four hundred twenty-three thousand, one hundred fifty-three".