133750255 has 4 divisors (see below), whose sum is σ = 160500312. Its totient is φ = 107000200.

The previous prime is 133750231. The next prime is 133750261. The reversal of 133750255 is 552057331.

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

It is not a de Polignac number, because 133750255 - 2¹¹ = 133748207 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 13375021 + ... + 13375030.

It is an arithmetic number, because the mean of its divisors is an integer number (40125078).

Almost surely, 2^133750255 is an apocalyptic number.

133750255 is a deficient number, since it is larger than the sum of its proper divisors (26750057).

133750255 is an equidigital number, since it uses as much as digits as its factorization.

133750255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26750056.

The product of its (nonzero) digits is 15750, while the sum is 31.

The square root of 133750255 is about 11565.0445308265. The cubic root of 133750255 is about 511.4048858894.

The spelling of 133750255 in words is "one hundred thirty-three million, seven hundred fifty thousand, two hundred fifty-five".