133250112 has 84 divisors (see below), whose sum is σ = 387291580. Its totient is φ = 43794432.

The previous prime is 133250111. The next prime is 133250129. The reversal of 133250112 is 211052331.

It can be written as a sum of positive squares in 2 ways, for example, as 94012416 + 39237696 = 9696^2 + 6264^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (133250111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40464 + ... + 43632.

Almost surely, 2^133250112 is an apocalyptic number.

133250112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133250112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193645790).

133250112 is an abundant number, since it is smaller than the sum of its proper divisors (254041468).

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

133250112 is a wasteful number, since it uses less digits than its factorization.

133250112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3260 (or 3247 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 133250112 is about 11543.4012318727. The cubic root of 133250112 is about 510.7666439864.

The spelling of 133250112 in words is "one hundred thirty-three million, two hundred fifty thousand, one hundred twelve".