133865084253 has 4 divisors (see below), whose sum is σ = 178486779008. Its totient is φ = 89243389500.

The previous prime is 133865084203. The next prime is 133865084261. The reversal of 133865084253 is 352480568331.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 133865084253 - 2¹⁶ = 133865018717 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 (133865084203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22310847373 + ... + 22310847378.

It is an arithmetic number, because the mean of its divisors is an integer number (44621694752).

Almost surely, 2^133865084253 is an apocalyptic number.

It is an amenable number.

133865084253 is a deficient number, since it is larger than the sum of its proper divisors (44621694755).

133865084253 is an equidigital number, since it uses as much as digits as its factorization.

133865084253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44621694754.

The product of its (nonzero) digits is 2073600, while the sum is 48.

The spelling of 133865084253 in words is "one hundred thirty-three billion, eight hundred sixty-five million, eighty-four thousand, two hundred fifty-three".