224255139 has 4 divisors (see below), whose sum is σ = 299006856. Its totient is φ = 149503424.

The previous prime is 224255131. The next prime is 224255149. The reversal of 224255139 is 931552422.

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

It is a cyclic number.

It is not a de Polignac number, because 224255139 - 2³ = 224255131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (224255131) by changing a digit.

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, 37375854 + ... + 37375859.

It is an arithmetic number, because the mean of its divisors is an integer number (74751714).

Almost surely, 2^224255139 is an apocalyptic number.

224255139 is a deficient number, since it is larger than the sum of its proper divisors (74751717).

224255139 is an equidigital number, since it uses as much as digits as its factorization.

224255139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74751716.

The product of its digits is 21600, while the sum is 33.

The square root of 224255139 is about 14975.1507171047. The cubic root of 224255139 is about 607.5482879194.

The spelling of 224255139 in words is "two hundred twenty-four million, two hundred fifty-five thousand, one hundred thirty-nine".