133361250 has 160 divisors (see below), whose sum is σ = 376529472. Its totient is φ = 31200000.

The previous prime is 133361201. The next prime is 133361257. The reversal of 133361250 is 52163331.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 133361250.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133361257) 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 79 ways as a sum of consecutive naturals, for example, 2186220 + ... + 2186280.

Almost surely, 2^133361250 is an apocalyptic number.

133361250 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 133361250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188264736).

133361250 is an abundant number, since it is smaller than the sum of its proper divisors (243168222).

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

133361250 is a wasteful number, since it uses less digits than its factorization.

133361250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150 (or 135 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 24.

The square root of 133361250 is about 11548.2141476507. The cubic root of 133361250 is about 510.9086071159.

The spelling of 133361250 in words is "one hundred thirty-three million, three hundred sixty-one thousand, two hundred fifty".