2531126142 has 24 divisors (see below), whose sum is σ = 5485191816. Its totient is φ = 843541776.

The previous prime is 2531126123. The next prime is 2531126183. The reversal of 2531126142 is 2416211352.

2531126142 is a `hidden beast` number, since 2 + 5 + 31 + 12 + 614 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 108873 + ... + 130059.

It is an arithmetic number, because the mean of its divisors is an integer number (228549659).

Almost surely, 2^2531126142 is an apocalyptic number.

2531126142 is an abundant number, since it is smaller than the sum of its proper divisors (2954065674).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2531126142 is a wasteful number, since it uses less digits than its factorization.

2531126142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27832 (or 27829 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 2531126142 is about 50310.2985679871. The cubic root of 2531126142 is about 1362.8182156272.

Adding to 2531126142 its reverse (2416211352), we get a palindrome (4947337494).

The spelling of 2531126142 in words is "two billion, five hundred thirty-one million, one hundred twenty-six thousand, one hundred forty-two".