431315225 has 12 divisors (see below), whose sum is σ = 583452240. Its totient is φ = 313683600.

The previous prime is 431315221. The next prime is 431315233. The reversal of 431315225 is 522513134.

It is a happy number.

It is not a de Polignac number, because 431315225 - 2² = 431315221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 431315194 and 431315203.

It is not an unprimeable number, because it can be changed into a prime (431315221) 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, 783935 + ... + 784484.

It is an arithmetic number, because the mean of its divisors is an integer number (48621020).

Almost surely, 2^431315225 is an apocalyptic number.

It is an amenable number.

431315225 is a deficient number, since it is larger than the sum of its proper divisors (152137015).

431315225 is a wasteful number, since it uses less digits than its factorization.

431315225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1568440 (or 1568435 counting only the distinct ones).

The product of its digits is 3600, while the sum is 26.

The square root of 431315225 is about 20768.1300313726. The cubic root of 431315225 is about 755.5529916492.

Adding to 431315225 its reverse (522513134), we get a palindrome (953828359).

The spelling of 431315225 in words is "four hundred thirty-one million, three hundred fifteen thousand, two hundred twenty-five".