133915255 has 4 divisors (see below), whose sum is σ = 160698312. Its totient is φ = 107132200.

The previous prime is 133915253. The next prime is 133915289. The reversal of 133915255 is 552519331.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 133915255 - 2¹ = 133915253 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 133915255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133915253) 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 3 ways as a sum of consecutive naturals, for example, 13391521 + ... + 13391530.

It is an arithmetic number, because the mean of its divisors is an integer number (40174578).

Almost surely, 2^133915255 is an apocalyptic number.

133915255 is a deficient number, since it is larger than the sum of its proper divisors (26783057).

133915255 is an equidigital number, since it uses as much as digits as its factorization.

133915255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26783056.

The product of its digits is 20250, while the sum is 34.

The square root of 133915255 is about 11572.1758973842. The cubic root of 133915255 is about 511.6150964068.

The spelling of 133915255 in words is "one hundred thirty-three million, nine hundred fifteen thousand, two hundred fifty-five".