131126133 has 4 divisors (see below), whose sum is σ = 174834848. Its totient is φ = 87417420.

The previous prime is 131126131. The next prime is 131126141. The reversal of 131126133 is 331621131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 331621131 = 3 ⋅110540377.

It is not a de Polignac number, because 131126133 - 2¹ = 131126131 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 (131126131) 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, 21854353 + ... + 21854358.

It is an arithmetic number, because the mean of its divisors is an integer number (43708712).

Almost surely, 2^131126133 is an apocalyptic number.

It is an amenable number.

131126133 is a deficient number, since it is larger than the sum of its proper divisors (43708715).

131126133 is an equidigital number, since it uses as much as digits as its factorization.

131126133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43708714.

The product of its digits is 324, while the sum is 21.

The square root of 131126133 is about 11451.0319622294. The cubic root of 131126133 is about 508.0382576536.

Adding to 131126133 its reverse (331621131), we get a palindrome (462747264).

The spelling of 131126133 in words is "one hundred thirty-one million, one hundred twenty-six thousand, one hundred thirty-three".