224145155 has 32 divisors (see below), whose sum is σ = 299230848. Its totient is φ = 160128000.

The previous prime is 224145139. The next prime is 224145157. The reversal of 224145155 is 551541422.

224145155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 224145155 - 2⁴ = 224145139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (224145157) 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, 402137 + ... + 402693.

It is an arithmetic number, because the mean of its divisors is an integer number (9350964).

Almost surely, 2^224145155 is an apocalyptic number.

224145155 is a deficient number, since it is larger than the sum of its proper divisors (75085693).

224145155 is a wasteful number, since it uses less digits than its factorization.

224145155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767.

The product of its digits is 8000, while the sum is 29.

The square root of 224145155 is about 14971.4780499455. The cubic root of 224145155 is about 607.4489494040.

Adding to 224145155 its reverse (551541422), we get a palindrome (775686577).

The spelling of 224145155 in words is "two hundred twenty-four million, one hundred forty-five thousand, one hundred fifty-five".