345564225 has 84 divisors (see below), whose sum is σ = 654348496. Its totient is φ = 180908640.

The previous prime is 345564209. The next prime is 345564251. The reversal of 345564225 is 522465543.

345564225 is a `hidden beast` number, since 3 + 4 + 5 + 5 + 642 + 2 + 5 = 666.

It is not a de Polignac number, because 345564225 - 2⁴ = 345564209 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 345564225.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 1220934 + ... + 1221216.

Almost surely, 2^345564225 is an apocalyptic number.

It is an amenable number.

345564225 is a deficient number, since it is larger than the sum of its proper divisors (308784271).

345564225 is an equidigital number, since it uses as much as digits as its factorization.

345564225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378 (or 358 counting only the distinct ones).

The product of its digits is 144000, while the sum is 36.

The square root of 345564225 is about 18589.3578425937. The cubic root of 345564225 is about 701.7400418136.

It can be divided in two parts, 34556 and 4225, that added together give a triangular number (38781 = T₂₇₈).

The spelling of 345564225 in words is "three hundred forty-five million, five hundred sixty-four thousand, two hundred twenty-five".