133531544241253 has 32 divisors (see below), whose sum is σ = 142202287622880. Its totient is φ = 125238608732160.

The previous prime is 133531544241197. The next prime is 133531544241257. The reversal of 133531544241253 is 352142445135331.

It can be written as a sum of positive squares in 16 ways, for example, as 123795041247684 + 9736502993569 = 11126322^2 + 3120337^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133531544241253 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 (133531544241257) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19757251 + ... + 25640047.

It is an arithmetic number, because the mean of its divisors is an integer number (4443821488215).

Almost surely, 2^{133531544241253} is an apocalyptic number.

It is an amenable number.

133531544241253 is a deficient number, since it is larger than the sum of its proper divisors (8670743381627).

133531544241253 is a wasteful number, since it uses less digits than its factorization.

133531544241253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5883097.

The product of its digits is 2592000, while the sum is 46.

Adding to 133531544241253 its reverse (352142445135331), we get a palindrome (485673989376584).

The spelling of 133531544241253 in words is "one hundred thirty-three trillion, five hundred thirty-one billion, five hundred forty-four million, two hundred forty-one thousand, two hundred fifty-three".