431631241 has 16 divisors (see below), whose sum is σ = 462868560. Its totient is φ = 401080320.

The previous prime is 431631203. The next prime is 431631247. The reversal of 431631241 is 142136134.

It can be written as a sum of positive squares in 8 ways, for example, as 30470400 + 401160841 = 5520^2 + 20029^2 .

It is a de Polignac number, because none of the positive numbers 2^k-431631241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (431631247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 560905 + ... + 561673.

It is an arithmetic number, because the mean of its divisors is an integer number (28929285).

Almost surely, 2^431631241 is an apocalyptic number.

It is an amenable number.

431631241 is a deficient number, since it is larger than the sum of its proper divisors (31237319).

431631241 is a wasteful number, since it uses less digits than its factorization.

431631241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1164.

The product of its digits is 1728, while the sum is 25.

The square root of 431631241 is about 20775.7368341053. The cubic root of 431631241 is about 755.7374727671.

Adding to 431631241 its reverse (142136134), we get a palindrome (573767375).

The spelling of 431631241 in words is "four hundred thirty-one million, six hundred thirty-one thousand, two hundred forty-one".