133126236 has 72 divisors (see below), whose sum is σ = 356428800. Its totient is φ = 41778720.

The previous prime is 133126229. The next prime is 133126241. The reversal of 133126236 is 632621331.

It is a happy number.

133126236 is a `hidden beast` number, since 1 + 3 + 31 + 2 + 623 + 6 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 130135 + ... + 131153.

It is an arithmetic number, because the mean of its divisors is an integer number (4950400).

Almost surely, 2^133126236 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133126236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178214400).

133126236 is an abundant number, since it is smaller than the sum of its proper divisors (223302564).

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

133126236 is a wasteful number, since it uses less digits than its factorization.

133126236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1239 (or 1234 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

The square root of 133126236 is about 11538.0343213218. The cubic root of 133126236 is about 510.6083168005.

Adding to 133126236 its reverse (632621331), we get a palindrome (765747567).

The spelling of 133126236 in words is "one hundred thirty-three million, one hundred twenty-six thousand, two hundred thirty-six".