345223225 has 24 divisors (see below), whose sum is σ = 439436160. Its totient is φ = 268912320.

The previous prime is 345223213. The next prime is 345223237. The reversal of 345223225 is 522322543.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (345223213) and next prime (345223237).

It is not a de Polignac number, because 345223225 - 2¹³ = 345215033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 345223193 and 345223202.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 268434 + ... + 269716.

It is an arithmetic number, because the mean of its divisors is an integer number (18309840).

Almost surely, 2^345223225 is an apocalyptic number.

It is an amenable number.

345223225 is a deficient number, since it is larger than the sum of its proper divisors (94212935).

345223225 is a wasteful number, since it uses less digits than its factorization.

345223225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1569 (or 1564 counting only the distinct ones).

The product of its digits is 14400, while the sum is 28.

The square root of 345223225 is about 18580.1836643237. The cubic root of 345223225 is about 701.5091420358.

Adding to 345223225 its reverse (522322543), we get a palindrome (867545768).

The spelling of 345223225 in words is "three hundred forty-five million, two hundred twenty-three thousand, two hundred twenty-five".