133115355 has 24 divisors (see below), whose sum is σ = 244307232. Its totient is φ = 66818304.

The previous prime is 133115347. The next prime is 133115371. The reversal of 133115355 is 553511331.

It is not a de Polignac number, because 133115355 - 2³ = 133115347 is a prime.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86239 + ... + 87768.

It is an arithmetic number, because the mean of its divisors is an integer number (10179468).

Almost surely, 2^133115355 is an apocalyptic number.

133115355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

133115355 is a deficient number, since it is larger than the sum of its proper divisors (111191877).

133115355 is a wasteful number, since it uses less digits than its factorization.

133115355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174035 (or 174032 counting only the distinct ones).

The product of its digits is 3375, while the sum is 27.

The square root of 133115355 is about 11537.5627842279. The cubic root of 133115355 is about 510.5944049911.

Adding to 133115355 its reverse (553511331), we get a palindrome (686626686).

The spelling of 133115355 in words is "one hundred thirty-three million, one hundred fifteen thousand, three hundred fifty-five".