133182940 has 72 divisors (see below), whose sum is σ = 312206832. Its totient is φ = 47324160.

The previous prime is 133182923. The next prime is 133182953. The reversal of 133182940 is 49281331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1372972 + ... + 1373068.

It is an arithmetic number, because the mean of its divisors is an integer number (4336206).

Almost surely, 2^133182940 is an apocalyptic number.

133182940 is a gapful number since it is divisible by the number (10) 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 133182940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156103416).

133182940 is an abundant number, since it is smaller than the sum of its proper divisors (179023892).

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

133182940 is a wasteful number, since it uses less digits than its factorization.

133182940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275 (or 194 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 133182940 is about 11540.4913240295. The cubic root of 133182940 is about 510.6808029485.

The spelling of 133182940 in words is "one hundred thirty-three million, one hundred eighty-two thousand, nine hundred forty".