431346131 has 4 divisors (see below), whose sum is σ = 431387712. Its totient is φ = 431304552.

The previous prime is 431346107. The next prime is 431346161. The reversal of 431346131 is 131643134.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-431346131 is a prime.

It is a super-2 number, since 2×431346131² = 372118969457338322, which contains 22 as substring.

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 431346131.

It is not an unprimeable number, because it can be changed into a prime (431346161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8990 + ... + 30716.

It is an arithmetic number, because the mean of its divisors is an integer number (107846928).

Almost surely, 2^431346131 is an apocalyptic number.

431346131 is a deficient number, since it is larger than the sum of its proper divisors (41581).

431346131 is a wasteful number, since it uses less digits than its factorization.

431346131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41580.

The product of its digits is 2592, while the sum is 26.

The square root of 431346131 is about 20768.8740908120. The cubic root of 431346131 is about 755.5710376641.

Adding to 431346131 its reverse (131643134), we get a palindrome (562989265).

The spelling of 431346131 in words is "four hundred thirty-one million, three hundred forty-six thousand, one hundred thirty-one".