133529100873128 has 16 divisors (see below), whose sum is σ = 250692639004500. Its totient is φ = 66677730471936.

The previous prime is 133529100873121. The next prime is 133529100873131. The reversal of 133529100873128 is 821378001925331.

It can be written as a sum of positive squares in 2 ways, for example, as 121805612487364 + 11723488385764 = 11036558^2 + 3423958^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 133529100873128.

It is not an unprimeable number, because it can be changed into a prime (133529100873121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10852489043 + ... + 10852501346.

Almost surely, 2^{133529100873128} is an apocalyptic number.

It is an amenable number.

133529100873128 is a deficient number, since it is larger than the sum of its proper divisors (117163538131372).

133529100873128 is a wasteful number, since it uses less digits than its factorization.

133529100873128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21704991164 (or 21704991160 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 53.

The spelling of 133529100873128 in words is "one hundred thirty-three trillion, five hundred twenty-nine billion, one hundred million, eight hundred seventy-three thousand, one hundred twenty-eight".