146322223 has 2 divisors, whose sum is σ = 146322224. Its totient is φ = 146322222.

The previous prime is 146322221. The next prime is 146322257. The reversal of 146322223 is 322223641.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 146322223 - 2¹ = 146322221 is a prime.

Together with 146322221, it forms a pair of twin primes.

It is equal to p_8249002 and since 146322223 and 8249002 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146322221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73161111 + 73161112.

It is an arithmetic number, because the mean of its divisors is an integer number (73161112).

Almost surely, 2^146322223 is an apocalyptic number.

146322223 is a deficient number, since it is larger than the sum of its proper divisors (1).

146322223 is an equidigital number, since it uses as much as digits as its factorization.

146322223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 25.

The square root of 146322223 is about 12096.3723074317. The cubic root of 146322223 is about 526.9508347808.

Adding to 146322223 its reverse (322223641), we get a palindrome (468545864).

The spelling of 146322223 in words is "one hundred forty-six million, three hundred twenty-two thousand, two hundred twenty-three".