431213125 has 20 divisors (see below), whose sum is σ = 615827872. Its totient is φ = 295686000.

The previous prime is 431213089. The next prime is 431213129. The reversal of 431213125 is 521312134.

It is a happy number.

It is not a de Polignac number, because 431213125 - 2⁷ = 431212997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 431213096 and 431213105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431213129) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 44907 + ... + 53656.

Almost surely, 2^431213125 is an apocalyptic number.

It is an amenable number.

431213125 is a deficient number, since it is larger than the sum of its proper divisors (184614747).

431213125 is an frugal number, since it uses more digits than its factorization.

431213125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98590 (or 98575 counting only the distinct ones).

The product of its digits is 720, while the sum is 22.

The square root of 431213125 is about 20765.6717926486. The cubic root of 431213125 is about 755.4933693252.

Adding to 431213125 its reverse (521312134), we get a palindrome (952525259).

Subtracting 431213125 from its reverse (521312134), we obtain a palindrome (90099009).

The spelling of 431213125 in words is "four hundred thirty-one million, two hundred thirteen thousand, one hundred twenty-five".