146228223 has 4 divisors (see below), whose sum is σ = 194970968. Its totient is φ = 97485480.

The previous prime is 146228197. The next prime is 146228231. The reversal of 146228223 is 322822641.

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

It is not a de Polignac number, because 146228223 - 2⁵ = 146228191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146228293) 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, 24371368 + ... + 24371373.

It is an arithmetic number, because the mean of its divisors is an integer number (48742742).

Almost surely, 2^146228223 is an apocalyptic number.

146228223 is a deficient number, since it is larger than the sum of its proper divisors (48742745).

146228223 is an equidigital number, since it uses as much as digits as its factorization.

146228223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48742744.

The product of its digits is 9216, while the sum is 30.

The square root of 146228223 is about 12092.4862207902. The cubic root of 146228223 is about 526.8379697439.

The spelling of 146228223 in words is "one hundred forty-six million, two hundred twenty-eight thousand, two hundred twenty-three".