133275265 has 4 divisors (see below), whose sum is σ = 159930324. Its totient is φ = 106620208.

The previous prime is 133275239. The next prime is 133275283. The reversal of 133275265 is 562572331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 562572331 = 1823 ⋅308597.

It can be written as a sum of positive squares in 2 ways, for example, as 36626704 + 96648561 = 6052^2 + 9831^2 .

It is a cyclic number.

It is not a de Polignac number, because 133275265 - 2¹³ = 133267073 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 133275265.

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, 13327522 + ... + 13327531.

It is an arithmetic number, because the mean of its divisors is an integer number (39982581).

Almost surely, 2^133275265 is an apocalyptic number.

It is an amenable number.

133275265 is a deficient number, since it is larger than the sum of its proper divisors (26655059).

133275265 is an equidigital number, since it uses as much as digits as its factorization.

133275265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26655058.

The product of its digits is 37800, while the sum is 34.

The square root of 133275265 is about 11544.4906773751. The cubic root of 133275265 is about 510.7987803074.

The spelling of 133275265 in words is "one hundred thirty-three million, two hundred seventy-five thousand, two hundred sixty-five".