133831126 has 16 divisors (see below), whose sum is σ = 235842768. Its totient is φ = 56152800.

The previous prime is 133831099. The next prime is 133831129. The reversal of 133831126 is 621138331.

133831126 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 133831094 and 133831103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133831129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233685 + ... + 234256.

It is an arithmetic number, because the mean of its divisors is an integer number (14740173).

Almost surely, 2^133831126 is an apocalyptic number.

133831126 is a deficient number, since it is larger than the sum of its proper divisors (102011642).

133831126 is a wasteful number, since it uses less digits than its factorization.

133831126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467967.

The product of its digits is 2592, while the sum is 28.

The square root of 133831126 is about 11568.5403573657. The cubic root of 133831126 is about 511.5079373858.

Adding to 133831126 its reverse (621138331), we get a palindrome (754969457).

The spelling of 133831126 in words is "one hundred thirty-three million, eight hundred thirty-one thousand, one hundred twenty-six".