224642133 has 32 divisors (see below), whose sum is σ = 345100800. Its totient is φ = 144307008.

The previous prime is 224642129. The next prime is 224642137. The reversal of 224642133 is 331246422.

224642133 is a `hidden beast` number, since 2 + 2 + 4 + 642 + 13 + 3 = 666.

224642133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (224642129) and next prime (224642137).

It is not a de Polignac number, because 224642133 - 2² = 224642129 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 224642097 and 224642106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224642137) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 107860 + ... + 109922.

It is an arithmetic number, because the mean of its divisors is an integer number (10784400).

Almost surely, 2^224642133 is an apocalyptic number.

It is an amenable number.

224642133 is a deficient number, since it is larger than the sum of its proper divisors (120458667).

224642133 is a wasteful number, since it uses less digits than its factorization.

224642133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2218 (or 2212 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

The square root of 224642133 is about 14988.0663529356. The cubic root of 224642133 is about 607.8975663147.

Adding to 224642133 its reverse (331246422), we get a palindrome (555888555).

The spelling of 224642133 in words is "two hundred twenty-four million, six hundred forty-two thousand, one hundred thirty-three".