133038285 has 16 divisors (see below), whose sum is σ = 224064960. Its totient is φ = 67219200.

The previous prime is 133038281. The next prime is 133038319. The reversal of 133038285 is 582830331.

It is not a de Polignac number, because 133038285 - 2² = 133038281 is a prime.

It is a super-3 number, since 3×133038285³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133038281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 233116 + ... + 233685.

It is an arithmetic number, because the mean of its divisors is an integer number (14004060).

Almost surely, 2^133038285 is an apocalyptic number.

133038285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

133038285 is a deficient number, since it is larger than the sum of its proper divisors (91026675).

133038285 is a wasteful number, since it uses less digits than its factorization.

133038285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466828.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 133038285 is about 11534.2223404961. Note that the first 3 decimals coincide. The cubic root of 133038285 is about 510.4958460940.

The spelling of 133038285 in words is "one hundred thirty-three million, thirty-eight thousand, two hundred eighty-five".