340315225 has 6 divisors (see below), whose sum is σ = 421990910. Its totient is φ = 272252160.

The previous prime is 340315223. The next prime is 340315247. The reversal of 340315225 is 522513043.

It can be written as a sum of positive squares in 3 ways, for example, as 52809289 + 287505936 = 7267^2 + 16956^2 .

It is not a de Polignac number, because 340315225 - 2¹ = 340315223 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 13612609 = 340315225 / (3 + 4 + 0 + 3 + 1 + 5 + 2 + 2 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 340315225.

It is not an unprimeable number, because it can be changed into a prime (340315223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6806280 + ... + 6806329.

Almost surely, 2^340315225 is an apocalyptic number.

It is an amenable number.

340315225 is a deficient number, since it is larger than the sum of its proper divisors (81675685).

340315225 is a wasteful number, since it uses less digits than its factorization.

340315225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13612619 (or 13612614 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 340315225 is about 18447.6346722283. The cubic root of 340315225 is about 698.1688363972.

Adding to 340315225 its reverse (522513043), we get a palindrome (862828268).

The spelling of 340315225 in words is "three hundred forty million, three hundred fifteen thousand, two hundred twenty-five".