531431141 has 8 divisors (see below), whose sum is σ = 534916704. Its totient is φ = 527955120.

The previous prime is 531431107. The next prime is 531431149. The reversal of 531431141 is 141134135.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-531431141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531431149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133715 + ... + 137631.

It is an arithmetic number, because the mean of its divisors is an integer number (66864588).

Almost surely, 2^531431141 is an apocalyptic number.

It is an amenable number.

531431141 is a deficient number, since it is larger than the sum of its proper divisors (3485563).

531431141 is a wasteful number, since it uses less digits than its factorization.

531431141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4771.

The product of its digits is 720, while the sum is 23.

The square root of 531431141 is about 23052.7903083336. The cubic root of 531431141 is about 809.9949910781.

Adding to 531431141 its reverse (141134135), we get a palindrome (672565276).

The spelling of 531431141 in words is "five hundred thirty-one million, four hundred thirty-one thousand, one hundred forty-one".