224153121 has 4 divisors (see below), whose sum is σ = 298870832. Its totient is φ = 149435412.

The previous prime is 224153119. The next prime is 224153161. The reversal of 224153121 is 121351422.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 224153121 - 2¹ = 224153119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (224153161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37358851 + ... + 37358856.

It is an arithmetic number, because the mean of its divisors is an integer number (74717708).

Almost surely, 2^224153121 is an apocalyptic number.

It is an amenable number.

224153121 is a deficient number, since it is larger than the sum of its proper divisors (74717711).

224153121 is an equidigital number, since it uses as much as digits as its factorization.

224153121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74717710.

The product of its digits is 480, while the sum is 21.

The square root of 224153121 is about 14971.7440867789. The cubic root of 224153121 is about 607.4561454566.

The spelling of 224153121 in words is "two hundred twenty-four million, one hundred fifty-three thousand, one hundred twenty-one".