224890145 has 4 divisors (see below), whose sum is σ = 269868180. Its totient is φ = 179912112.

The previous prime is 224890117. The next prime is 224890177. The reversal of 224890145 is 541098422.

224890145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 149426176 + 75463969 = 12224^2 + 8687^2 .

It is a cyclic number.

It is not a de Polignac number, because 224890145 - 2¹⁰ = 224889121 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22489010 + ... + 22489019.

It is an arithmetic number, because the mean of its divisors is an integer number (67467045).

Almost surely, 2^224890145 is an apocalyptic number.

It is an amenable number.

224890145 is a deficient number, since it is larger than the sum of its proper divisors (44978035).

224890145 is an equidigital number, since it uses as much as digits as its factorization.

224890145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44978034.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 224890145 is about 14996.3377195901. The cubic root of 224890145 is about 608.1211967319.

The spelling of 224890145 in words is "two hundred twenty-four million, eight hundred ninety thousand, one hundred forty-five".