133112828 has 24 divisors (see below), whose sum is σ = 239885184. Its totient is φ = 64584000.

The previous prime is 133112807. The next prime is 133112831. The reversal of 133112828 is 828211331.

It is a self number, because there is not a number n which added to its sum of digits gives 133112828.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 67253 + ... + 69203.

It is an arithmetic number, because the mean of its divisors is an integer number (9995216).

Almost surely, 2^133112828 is an apocalyptic number.

It is an amenable number.

133112828 is a deficient number, since it is larger than the sum of its proper divisors (106772356).

133112828 is a wasteful number, since it uses less digits than its factorization.

133112828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2453 (or 2451 counting only the distinct ones).

The product of its digits is 2304, while the sum is 29.

The square root of 133112828 is about 11537.4532718447. The cubic root of 133112828 is about 510.5911740084.

The spelling of 133112828 in words is "one hundred thirty-three million, one hundred twelve thousand, eight hundred twenty-eight".