133531534440605 has 16 divisors (see below), whose sum is σ = 193901253373440. Its totient is φ = 86178334831872.

The previous prime is 133531534440589. The next prime is 133531534440607. The reversal of 133531534440605 is 506044435135331.

It is a cyclic number.

It is not a de Polignac number, because 133531534440605 - 2⁴ = 133531534440589 is a prime.

It is a super-3 number, since 3×133531534440605³ (a number of 43 digits) contains 333 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 133531534440605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133531534440607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112211372885 + ... + 112211374074.

It is an arithmetic number, because the mean of its divisors is an integer number (12118828335840).

Almost surely, 2^{133531534440605} is an apocalyptic number.

It is an amenable number.

133531534440605 is a deficient number, since it is larger than the sum of its proper divisors (60369718932835).

133531534440605 is a wasteful number, since it uses less digits than its factorization.

133531534440605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224422746988.

The product of its (nonzero) digits is 3888000, while the sum is 47.

Adding to 133531534440605 its reverse (506044435135331), we get a palindrome (639575969575936).

The spelling of 133531534440605 in words is "one hundred thirty-three trillion, five hundred thirty-one billion, five hundred thirty-four million, four hundred forty thousand, six hundred five".