223144128 has 42 divisors (see below), whose sum is σ = 639604004. Its totient is φ = 74381184.

The previous prime is 223144123. The next prime is 223144133. The reversal of 223144128 is 821441322.

It is an interprime number because it is at equal distance from previous prime (223144123) and next prime (223144133).

It is a super-3 number, since 3×223144128³ (a number of 26 digits) contains 333 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (223144123) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 193126 + ... + 194277.

Almost surely, 2^223144128 is an apocalyptic number.

It is an amenable number.

223144128 is an abundant number, since it is smaller than the sum of its proper divisors (416459876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

223144128 is a wasteful number, since it uses less digits than its factorization.

223144128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387421 (or 387408 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

The square root of 223144128 is about 14938.0095059549. The cubic root of 223144128 is about 606.5433156343.

The spelling of 223144128 in words is "two hundred twenty-three million, one hundred forty-four thousand, one hundred twenty-eight".