133285902 has 8 divisors (see below), whose sum is σ = 266571816. Its totient is φ = 44428632.

The previous prime is 133285879. The next prime is 133285903. The reversal of 133285902 is 209582331.

It is a sphenic number, since it is the product of 3 distinct primes.

133285902 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133285903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11107153 + ... + 11107164.

It is an arithmetic number, because the mean of its divisors is an integer number (33321477).

Almost surely, 2^133285902 is an apocalyptic number.

133285902 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

133285902 is a wasteful number, since it uses less digits than its factorization.

133285902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22214322.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 133285902 is about 11544.9513641245. The cubic root of 133285902 is about 510.8123692808.

The spelling of 133285902 in words is "one hundred thirty-three million, two hundred eighty-five thousand, nine hundred two".