133515255 has 16 divisors (see below), whose sum is σ = 216814464. Its totient is φ = 70144800.

The previous prime is 133515247. The next prime is 133515259. The reversal of 133515255 is 552515331.

It is not a de Polignac number, because 133515255 - 2³ = 133515247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133515259) 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, 65421 + ... + 67430.

It is an arithmetic number, because the mean of its divisors is an integer number (13550904).

Almost surely, 2^133515255 is an apocalyptic number.

133515255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

133515255 is a deficient number, since it is larger than the sum of its proper divisors (83299209).

133515255 is a wasteful number, since it uses less digits than its factorization.

133515255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132926.

The product of its digits is 11250, while the sum is 30.

The square root of 133515255 is about 11554.8801378465. The cubic root of 133515255 is about 511.1051964852.

The spelling of 133515255 in words is "one hundred thirty-three million, five hundred fifteen thousand, two hundred fifty-five".