431263 has 4 divisors (see below), whose sum is σ = 492880. Its totient is φ = 369648.

The previous prime is 431257. The next prime is 431267. The reversal of 431263 is 362134.

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

It is a cyclic number.

It is not a de Polignac number, because 431263 - 2⁹ = 430751 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 431263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431267) 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, 30798 + ... + 30811.

It is an arithmetic number, because the mean of its divisors is an integer number (123220).

2⁴³¹²⁶³ is an apocalyptic number.

431263 is a deficient number, since it is larger than the sum of its proper divisors (61617).

431263 is an equidigital number, since it uses as much as digits as its factorization.

431263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61616.

The product of its digits is 432, while the sum is 19.

The square root of 431263 is about 656.7061747844. The cubic root of 431263 is about 75.5522495510.

Adding to 431263 its reverse (362134), we get a palindrome (793397).

The spelling of 431263 in words is "four hundred thirty-one thousand, two hundred sixty-three".