133353521253 has 6 divisors (see below), whose sum is σ = 192621752934. Its totient is φ = 88902347496.

The previous prime is 133353521173. The next prime is 133353521263. The reversal of 133353521253 is 352125353331.

It is a happy number.

133353521253 is a `hidden beast` number, since 1 + 3 + 3 + 353 + 52 + 1 + 253 = 666.

It can be written as a sum of positive squares in only one way, i.e., 130929632964 + 2423888289 = 361842^2 + 49233^2 .

It is not a de Polignac number, because 133353521253 - 2²⁹ = 132816650341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133353521263) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7408528950 + ... + 7408528967.

It is an arithmetic number, because the mean of its divisors is an integer number (32103625489).

Almost surely, 2^133353521253 is an apocalyptic number.

It is an amenable number.

133353521253 is a deficient number, since it is larger than the sum of its proper divisors (59268231681).

133353521253 is a wasteful number, since it uses less digits than its factorization.

133353521253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14817057923 (or 14817057920 counting only the distinct ones).

The product of its digits is 121500, while the sum is 36.

Adding to 133353521253 its reverse (352125353331), we get a palindrome (485478874584).

The spelling of 133353521253 in words is "one hundred thirty-three billion, three hundred fifty-three million, five hundred twenty-one thousand, two hundred fifty-three".