431225105 has 4 divisors (see below), whose sum is σ = 517470132. Its totient is φ = 344980080.

The previous prime is 431225101. The next prime is 431225107. The reversal of 431225105 is 501522134.

431225105 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 103144336 + 328080769 = 10156^2 + 18113^2 .

It is not a de Polignac number, because 431225105 - 2² = 431225101 is a prime.

It is a super-2 number, since 2×431225105² = 371910182364522050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (431225101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43122506 + ... + 43122515.

It is an arithmetic number, because the mean of its divisors is an integer number (129367533).

Almost surely, 2^431225105 is an apocalyptic number.

It is an amenable number.

431225105 is a deficient number, since it is larger than the sum of its proper divisors (86245027).

431225105 is an equidigital number, since it uses as much as digits as its factorization.

431225105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86245026.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 431225105 is about 20765.9602474819. The cubic root of 431225105 is about 755.5003656543.

Adding to 431225105 its reverse (501522134), we get a palindrome (932747239).

The spelling of 431225105 in words is "four hundred thirty-one million, two hundred twenty-five thousand, one hundred five".