133308620 has 24 divisors (see below), whose sum is σ = 281159424. Its totient is φ = 53092736.

The previous prime is 133308569. The next prime is 133308631. The reversal of 133308620 is 26803331.

It is a self number, because there is not a number n which added to its sum of digits gives 133308620.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9644 + ... + 18963.

It is an arithmetic number, because the mean of its divisors is an integer number (11714976).

Almost surely, 2^133308620 is an apocalyptic number.

133308620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133308620 is an abundant number, since it is smaller than the sum of its proper divisors (147850804).

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

133308620 is a wasteful number, since it uses less digits than its factorization.

133308620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28849 (or 28847 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 133308620 is about 11545.9352154773. The cubic root of 133308620 is about 510.8413895447.

The spelling of 133308620 in words is "one hundred thirty-three million, three hundred eight thousand, six hundred twenty".