131135156 has 12 divisors (see below), whose sum is σ = 232630692. Its totient is φ = 64669248.

The previous prime is 131135143. The next prime is 131135189. The reversal of 131135156 is 651531131.

It can be written as a sum of positive squares in 2 ways, for example, as 95374756 + 35760400 = 9766^2 + 5980^2 .

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, 224255 + ... + 224838.

It is an arithmetic number, because the mean of its divisors is an integer number (19385891).

Almost surely, 2^131135156 is an apocalyptic number.

It is an amenable number.

131135156 is a deficient number, since it is larger than the sum of its proper divisors (101495536).

131135156 is a wasteful number, since it uses less digits than its factorization.

131135156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449170 (or 449168 counting only the distinct ones).

The product of its digits is 1350, while the sum is 26.

The square root of 131135156 is about 11451.4259374106. The cubic root of 131135156 is about 508.0499103627.

Adding to 131135156 its reverse (651531131), we get a palindrome (782666287).

The spelling of 131135156 in words is "one hundred thirty-one million, one hundred thirty-five thousand, one hundred fifty-six".