133833320 has 32 divisors (see below), whose sum is σ = 314219520. Its totient is φ = 51205440.

The previous prime is 133833313. The next prime is 133833373. The reversal of 133833320 is 23338331.

It is a super-2 number, since 2×133833320² = 35822715084444800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 133833320.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71816 + ... + 73655.

It is an arithmetic number, because the mean of its divisors is an integer number (9819360).

Almost surely, 2^133833320 is an apocalyptic number.

133833320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133833320 is an abundant number, since it is smaller than the sum of its proper divisors (180386200).

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

133833320 is a wasteful number, since it uses less digits than its factorization.

133833320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145505 (or 145501 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 26.

The square root of 133833320 is about 11568.6351831147. The cubic root of 133833320 is about 511.5107325559.

The spelling of 133833320 in words is "one hundred thirty-three million, eight hundred thirty-three thousand, three hundred twenty".