133495253 has 4 divisors (see below), whose sum is σ = 134068428. Its totient is φ = 132922080.

The previous prime is 133495249. The next prime is 133495259. The reversal of 133495253 is 352594331.

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

It can be written as a sum of positive squares in 2 ways, for example, as 88040689 + 45454564 = 9383^2 + 6742^2 .

It is a cyclic number.

It is not a de Polignac number, because 133495253 - 2² = 133495249 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133495259) 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, 286238 + ... + 286703.

It is an arithmetic number, because the mean of its divisors is an integer number (33517107).

Almost surely, 2^133495253 is an apocalyptic number.

It is an amenable number.

133495253 is a deficient number, since it is larger than the sum of its proper divisors (573175).

133495253 is an equidigital number, since it uses as much as digits as its factorization.

133495253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573174.

The product of its digits is 48600, while the sum is 35.

The square root of 133495253 is about 11554.0145836848. The cubic root of 133495253 is about 511.0796722190.

The spelling of 133495253 in words is "one hundred thirty-three million, four hundred ninety-five thousand, two hundred fifty-three".