133788255 has 8 divisors (see below), whose sum is σ = 214061232. Its totient is φ = 71353728.

The previous prime is 133788251. The next prime is 133788257. The reversal of 133788255 is 552887331.

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

It is not a de Polignac number, because 133788255 - 2² = 133788251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133788251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4459594 + ... + 4459623.

It is an arithmetic number, because the mean of its divisors is an integer number (26757654).

Almost surely, 2^133788255 is an apocalyptic number.

133788255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

133788255 is a deficient number, since it is larger than the sum of its proper divisors (80272977).

133788255 is an equidigital number, since it uses as much as digits as its factorization.

133788255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8919225.

The product of its digits is 201600, while the sum is 42.

The square root of 133788255 is about 11566.6872958510. The cubic root of 133788255 is about 511.4533133249.

The spelling of 133788255 in words is "one hundred thirty-three million, seven hundred eighty-eight thousand, two hundred fifty-five".