146004223 has 4 divisors (see below), whose sum is σ = 146411280. Its totient is φ = 145597168.

The previous prime is 146004197. The next prime is 146004247. The reversal of 146004223 is 322400641.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146004223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 146004194 and 146004203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146004263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202990 + ... + 203707.

It is an arithmetic number, because the mean of its divisors is an integer number (36602820).

Almost surely, 2^146004223 is an apocalyptic number.

146004223 is a deficient number, since it is larger than the sum of its proper divisors (407057).

146004223 is an equidigital number, since it uses as much as digits as its factorization.

146004223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407056.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 146004223 is about 12083.2207213143. The cubic root of 146004223 is about 526.5688196602.

Adding to 146004223 its reverse (322400641), we get a palindrome (468404864).

The spelling of 146004223 in words is "one hundred forty-six million, four thousand, two hundred twenty-three".