431125 has 8 divisors (see below), whose sum is σ = 538200. Its totient is φ = 344800.

The previous prime is 431107. The next prime is 431141. The reversal of 431125 is 521134.

It can be written as a sum of positive squares in 4 ways, for example, as 125316 + 305809 = 354^2 + 553^2 .

It is not a de Polignac number, because 431125 - 2¹⁵ = 398357 is a prime.

It is an Ulam number.

431125 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 431099 and 431108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1600 + ... + 1849.

It is an arithmetic number, because the mean of its divisors is an integer number (67275).

2⁴³¹¹²⁵ is an apocalyptic number.

It is an amenable number.

431125 is a deficient number, since it is larger than the sum of its proper divisors (107075).

431125 is an equidigital number, since it uses as much as digits as its factorization.

431125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3464 (or 3454 counting only the distinct ones).

The product of its digits is 120, while the sum is 16.

The square root of 431125 is about 656.6010965571. The cubic root of 431125 is about 75.5441900276.

Adding to 431125 its reverse (521134), we get a palindrome (952259).

Subtracting 431125 from its reverse (521134), we obtain a palindrome (90009).

The spelling of 431125 in words is "four hundred thirty-one thousand, one hundred twenty-five".