133234540 has 12 divisors (see below), whose sum is σ = 279792576. Its totient is φ = 53293808.

The previous prime is 133234529. The next prime is 133234583. The reversal of 133234540 is 45432331.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3330844 + ... + 3330883.

It is an arithmetic number, because the mean of its divisors is an integer number (23316048).

Almost surely, 2^133234540 is an apocalyptic number.

133234540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133234540 is an abundant number, since it is smaller than the sum of its proper divisors (146558036).

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

133234540 is a wasteful number, since it uses less digits than its factorization.

133234540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6661736 (or 6661734 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 133234540 is about 11542.7267142560. The cubic root of 133234540 is about 510.7467466472.

Adding to 133234540 its reverse (45432331), we get a palindrome (178666871).

The spelling of 133234540 in words is "one hundred thirty-three million, two hundred thirty-four thousand, five hundred forty".