133643435260121 has 8 divisors (see below), whose sum is σ = 141586466931144. Its totient is φ = 125709476158720.

The previous prime is 133643435260109. The next prime is 133643435260177. The reversal of 133643435260121 is 121062534346331.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 48785531192896 + 84857904067225 = 6984664^2 + 9211835^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 133643435260121 - 2¹⁰ = 133643435259097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133643435269121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2268112070 + ... + 2268170991.

It is an arithmetic number, because the mean of its divisors is an integer number (17698308366393).

Almost surely, 2^{133643435260121} is an apocalyptic number.

It is an amenable number.

133643435260121 is a deficient number, since it is larger than the sum of its proper divisors (7943031671023).

133643435260121 is a wasteful number, since it uses less digits than its factorization.

133643435260121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4536284811.

The product of its (nonzero) digits is 933120, while the sum is 44.

The spelling of 133643435260121 in words is "one hundred thirty-three trillion, six hundred forty-three billion, four hundred thirty-five million, two hundred sixty thousand, one hundred twenty-one".