2531534231 has 4 divisors (see below), whose sum is σ = 2569318392. Its totient is φ = 2493750072.

The previous prime is 2531534219. The next prime is 2531534251. The reversal of 2531534231 is 1324351352.

It is a happy number.

2531534231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2531534231 - 2⁶ = 2531534167 is a prime.

It is a super-2 number, since 2×2531534231² = 12817331125449522722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2531534194 and 2531534203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2531534251) 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, 18891980 + ... + 18892113.

It is an arithmetic number, because the mean of its divisors is an integer number (642329598).

Almost surely, 2^2531534231 is an apocalyptic number.

2531534231 is a deficient number, since it is larger than the sum of its proper divisors (37784161).

2531534231 is an equidigital number, since it uses as much as digits as its factorization.

2531534231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37784160.

The product of its digits is 10800, while the sum is 29.

The square root of 2531534231 is about 50314.3541248419. The cubic root of 2531534231 is about 1362.8914532831.

Adding to 2531534231 its reverse (1324351352), we get a palindrome (3855885583).

The spelling of 2531534231 in words is "two billion, five hundred thirty-one million, five hundred thirty-four thousand, two hundred thirty-one".