431225845 has 8 divisors (see below), whose sum is σ = 524021760. Its totient is φ = 340613520.

The previous prime is 431225789. The next prime is 431225849. The reversal of 431225845 is 548522134.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 431225845 - 2¹³ = 431217653 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 431225845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431225849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 545461 + ... + 546250.

It is an arithmetic number, because the mean of its divisors is an integer number (65502720).

Almost surely, 2^431225845 is an apocalyptic number.

It is an amenable number.

431225845 is a deficient number, since it is larger than the sum of its proper divisors (92795915).

431225845 is a wasteful number, since it uses less digits than its factorization.

431225845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091795.

The product of its digits is 38400, while the sum is 34.

The square root of 431225845 is about 20765.9780650948. The cubic root of 431225845 is about 755.5007978106.

Adding to 431225845 its reverse (548522134), we get a palindrome (979747979).

The spelling of 431225845 in words is "four hundred thirty-one million, two hundred twenty-five thousand, eight hundred forty-five".