4231131 has 4 divisors (see below), whose sum is σ = 5641512. Its totient is φ = 2820752.

The previous prime is 4231121. The next prime is 4231177. The reversal of 4231131 is 1311324.

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 4231131 - 2⁵ = 4231099 is a prime.

It is a super-2 number, since 2×4231131² = 35804939078322, which contains 22 as substring.

It is a D-number.

4231131 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 4231131.

It is not an unprimeable number, because it can be changed into a prime (4231111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 705186 + ... + 705191.

It is an arithmetic number, because the mean of its divisors is an integer number (1410378).

Almost surely, 2^4231131 is an apocalyptic number.

4231131 is a deficient number, since it is larger than the sum of its proper divisors (1410381).

4231131 is a wasteful number, since it uses less digits than its factorization.

4231131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1410380.

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

The square root of 4231131 is about 2056.9713172526. The cubic root of 4231131 is about 161.7405158526.

Adding to 4231131 its reverse (1311324), we get a palindrome (5542455).

The spelling of 4231131 in words is "four million, two hundred thirty-one thousand, one hundred thirty-one".