133903902 has 16 divisors (see below), whose sum is σ = 292154112. Its totient is φ = 40576920.

The previous prime is 133903901. The next prime is 133903919. The reversal of 133903902 is 209309331.

It is a super-3 number, since 3×133903902³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 133903902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133903901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1014358 + ... + 1014489.

It is an arithmetic number, because the mean of its divisors is an integer number (18259632).

Almost surely, 2^133903902 is an apocalyptic number.

133903902 is an abundant number, since it is smaller than the sum of its proper divisors (158250210).

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

133903902 is a wasteful number, since it uses less digits than its factorization.

133903902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2028863.

The product of its (nonzero) digits is 4374, while the sum is 30.

The square root of 133903902 is about 11571.6853569392. The cubic root of 133903902 is about 511.6006381827.

The spelling of 133903902 in words is "one hundred thirty-three million, nine hundred three thousand, nine hundred two".