431229 has 4 divisors (see below), whose sum is σ = 574976. Its totient is φ = 287484.

The previous prime is 431219. The next prime is 431237. The reversal of 431229 is 922134.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 431229 - 2⁴ = 431213 is a prime.

It is a D-number.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71869 + ... + 71874.

It is an arithmetic number, because the mean of its divisors is an integer number (143744).

2⁴³¹²²⁹ is an apocalyptic number.

It is an amenable number.

431229 is a deficient number, since it is larger than the sum of its proper divisors (143747).

431229 is a wasteful number, since it uses less digits than its factorization.

431229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143746.

The product of its digits is 432, while the sum is 21.

The square root of 431229 is about 656.6802875068. The cubic root of 431229 is about 75.5502640309.

The spelling of 431229 in words is "four hundred thirty-one thousand, two hundred twenty-nine".