133340255 has 4 divisors (see below), whose sum is σ = 160008312. Its totient is φ = 106672200.

The previous prime is 133340227. The next prime is 133340279. The reversal of 133340255 is 552043331.

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

It is not a de Polignac number, because 133340255 - 2¹⁸ = 133078111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13334021 + ... + 13334030.

It is an arithmetic number, because the mean of its divisors is an integer number (40002078).

Almost surely, 2^133340255 is an apocalyptic number.

133340255 is a deficient number, since it is larger than the sum of its proper divisors (26668057).

133340255 is an equidigital number, since it uses as much as digits as its factorization.

133340255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26668056.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 133340255 is about 11547.3050968613. The cubic root of 133340255 is about 510.8817950068.

Adding to 133340255 its reverse (552043331), we get a palindrome (685383586).

The spelling of 133340255 in words is "one hundred thirty-three million, three hundred forty thousand, two hundred fifty-five".