133443140 has 12 divisors (see below), whose sum is σ = 280230636. Its totient is φ = 53377248.

The previous prime is 133443139. The next prime is 133443143. The reversal of 133443140 is 41344331.

133443140 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 83429956 + 50013184 = 9134^2 + 7072^2 .

It is a super-2 number, since 2×133443140² = 35614143226119200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (133443143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3336059 + ... + 3336098.

It is an arithmetic number, because the mean of its divisors is an integer number (23352553).

Almost surely, 2^133443140 is an apocalyptic number.

133443140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133443140 is an abundant number, since it is smaller than the sum of its proper divisors (146787496).

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

133443140 is a wasteful number, since it uses less digits than its factorization.

133443140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6672166 (or 6672164 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 133443140 is about 11551.7591733900. The cubic root of 133443140 is about 511.0131595882.

Adding to 133443140 its reverse (41344331), we get a palindrome (174787471).

The spelling of 133443140 in words is "one hundred thirty-three million, four hundred forty-three thousand, one hundred forty".