131134228 has 12 divisors (see below), whose sum is σ = 229580820. Its totient is φ = 65539712.

The previous prime is 131134193. The next prime is 131134271. The reversal of 131134228 is 822431131.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 127644804 + 3489424 = 11298^2 + 1868^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7050 + ... + 17662.

It is an arithmetic number, because the mean of its divisors is an integer number (19131735).

Almost surely, 2^131134228 is an apocalyptic number.

It is an amenable number.

131134228 is a deficient number, since it is larger than the sum of its proper divisors (98446592).

131134228 is a wasteful number, since it uses less digits than its factorization.

131134228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13706 (or 13704 counting only the distinct ones).

The product of its digits is 1152, while the sum is 25.

The square root of 131134228 is about 11451.3854183675. The cubic root of 131134228 is about 508.0487119263.

Adding to 131134228 its reverse (822431131), we get a palindrome (953565359).

The spelling of 131134228 in words is "one hundred thirty-one million, one hundred thirty-four thousand, two hundred twenty-eight".