133604250 has 128 divisors (see below), whose sum is σ = 366073344. Its totient is φ = 32256000.

The previous prime is 133604249. The next prime is 133604279. The reversal of 133604250 is 52406331.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 133604250.

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 63 ways as a sum of consecutive naturals, for example, 692154 + ... + 692346.

It is an arithmetic number, because the mean of its divisors is an integer number (2859948).

Almost surely, 2^133604250 is an apocalyptic number.

133604250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 133604250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183036672).

133604250 is an abundant number, since it is smaller than the sum of its proper divisors (232469094).

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

133604250 is a wasteful number, since it uses less digits than its factorization.

133604250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297 (or 287 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 133604250 is about 11558.7304666213. The cubic root of 133604250 is about 511.2187308386.

The spelling of 133604250 in words is "one hundred thirty-three million, six hundred four thousand, two hundred fifty".