431144331 has 8 divisors (see below), whose sum is σ = 575260560. Its totient is φ = 287228832.

The previous prime is 431144321. The next prime is 431144383. The reversal of 431144331 is 133441134.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 431144331 - 2⁶ = 431144267 is a prime.

It is a super-2 number, since 2×431144331² = 371770868306875122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (431144321) 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 7 ways as a sum of consecutive naturals, for example, 45096 + ... + 53813.

It is an arithmetic number, because the mean of its divisors is an integer number (71907570).

Almost surely, 2^431144331 is an apocalyptic number.

431144331 is a deficient number, since it is larger than the sum of its proper divisors (144116229).

431144331 is a wasteful number, since it uses less digits than its factorization.

431144331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100365.

The product of its digits is 1728, while the sum is 24.

The square root of 431144331 is about 20764.0152908824. The cubic root of 431144331 is about 755.4531910684.

Adding to 431144331 its reverse (133441134), we get a palindrome (564585465).

The spelling of 431144331 in words is "four hundred thirty-one million, one hundred forty-four thousand, three hundred thirty-one".