431061 has 4 divisors (see below), whose sum is σ = 574752. Its totient is φ = 287372.

The previous prime is 431051. The next prime is 431063. The reversal of 431061 is 160134.

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 a cyclic number.

It is not a de Polignac number, because 431061 - 2⁵ = 431029 is a prime.

It is a D-number.

It is a Curzon number.

431061 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 431061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431063) 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, 71841 + ... + 71846.

It is an arithmetic number, because the mean of its divisors is an integer number (143688).

2⁴³¹⁰⁶¹ is an apocalyptic number.

It is an amenable number.

431061 is a deficient number, since it is larger than the sum of its proper divisors (143691).

431061 is a wasteful number, since it uses less digits than its factorization.

431061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143690.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 431061 is about 656.5523589174. The cubic root of 431061 is about 75.5404516938.

Adding to 431061 its reverse (160134), we get a palindrome (591195).

It can be divided in two parts, 4310 and 61, that added together give a triangular number (4371 = T₉₃).

The spelling of 431061 in words is "four hundred thirty-one thousand, sixty-one".