133344620 has 24 divisors (see below), whose sum is σ = 280403088. Its totient is φ = 53265600.

The previous prime is 133344611. The next prime is 133344623. The reversal of 133344620 is 26443331.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 133344620.

It is not an unprimeable number, because it can be changed into a prime (133344623) 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 7 ways as a sum of consecutive naturals, for example, 12110 + ... + 20330.

It is an arithmetic number, because the mean of its divisors is an integer number (11683462).

Almost surely, 2^133344620 is an apocalyptic number.

133344620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133344620 is an abundant number, since it is smaller than the sum of its proper divisors (147058468).

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

133344620 is a wasteful number, since it uses less digits than its factorization.

133344620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9041 (or 9039 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

The square root of 133344620 is about 11547.4941004531. The cubic root of 133344620 is about 510.8873696542.

Adding to 133344620 its reverse (26443331), we get a palindrome (159787951).

The spelling of 133344620 in words is "one hundred thirty-three million, three hundred forty-four thousand, six hundred twenty".