431345225 has 12 divisors (see below), whose sum is σ = 537965196. Its totient is φ = 343078080.

The previous prime is 431345221. The next prime is 431345237. The reversal of 431345225 is 522543134.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 52809289 + 378535936 = 7267^2 + 19456^2 .

It is not a de Polignac number, because 431345225 - 2² = 431345221 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (431345221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45542 + ... + 54191.

It is an arithmetic number, because the mean of its divisors is an integer number (44830433).

Almost surely, 2^431345225 is an apocalyptic number.

It is an amenable number.

431345225 is a deficient number, since it is larger than the sum of its proper divisors (106619971).

431345225 is a wasteful number, since it uses less digits than its factorization.

431345225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99916 (or 99911 counting only the distinct ones).

The product of its digits is 14400, while the sum is 29.

The square root of 431345225 is about 20768.8522793148. The cubic root of 431345225 is about 755.5705086630.

Adding to 431345225 its reverse (522543134), we get a palindrome (953888359).

The spelling of 431345225 in words is "four hundred thirty-one million, three hundred forty-five thousand, two hundred twenty-five".