345864225 has 48 divisors (see below), whose sum is σ = 681956352. Its totient is φ = 151229760.

The previous prime is 345864221. The next prime is 345864227. The reversal of 345864225 is 522468543.

It is not a de Polignac number, because 345864225 - 2² = 345864221 is a prime.

It is not an unprimeable number, because it can be changed into a prime (345864221) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 2247 + ... + 26396.

It is an arithmetic number, because the mean of its divisors is an integer number (14207424).

Almost surely, 2^345864225 is an apocalyptic number.

345864225 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

345864225 is a deficient number, since it is larger than the sum of its proper divisors (336092127).

345864225 is a wasteful number, since it uses less digits than its factorization.

345864225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28686 (or 28681 counting only the distinct ones).

The product of its digits is 230400, while the sum is 39.

The square root of 345864225 is about 18597.4252250143. The cubic root of 345864225 is about 701.9430538786.

The spelling of 345864225 in words is "three hundred forty-five million, eight hundred sixty-four thousand, two hundred twenty-five".