133583250 has 64 divisors (see below), whose sum is σ = 335147904. Its totient is φ = 35438400.

The previous prime is 133583239. The next prime is 133583269. The reversal of 133583250 is 52385331.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 207429 + ... + 208071.

It is an arithmetic number, because the mean of its divisors is an integer number (5236686).

Almost surely, 2^133583250 is an apocalyptic number.

133583250 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 133583250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167573952).

133583250 is an abundant number, since it is smaller than the sum of its proper divisors (201564654).

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

133583250 is a wasteful number, since it uses less digits than its factorization.

133583250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 940 (or 930 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 133583250 is about 11557.8220266623. The cubic root of 133583250 is about 511.1919448747.

The spelling of 133583250 in words is "one hundred thirty-three million, five hundred eighty-three thousand, two hundred fifty".