133523554521125 has 16 divisors (see below), whose sum is σ = 166838406299760. Its totient is φ = 106689990888000.

The previous prime is 133523554521029. The next prime is 133523554521127. The reversal of 133523554521125 is 521125455325331.

It can be written as a sum of positive squares in 8 ways, for example, as 23303771450404 + 110219783070721 = 4827398^2 + 10498561^2 .

It is not a de Polignac number, because 133523554521125 - 2²⁴ = 133523537743909 is a prime.

It is a super-2 number, since 2×133523554521125² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 133523554521125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133523554521127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 644159606 + ... + 644366855.

It is an arithmetic number, because the mean of its divisors is an integer number (10427400393735).

Almost surely, 2^{133523554521125} is an apocalyptic number.

It is an amenable number.

133523554521125 is a deficient number, since it is larger than the sum of its proper divisors (33314851778635).

133523554521125 is an equidigital number, since it uses as much as digits as its factorization.

133523554521125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1288527305 (or 1288527295 counting only the distinct ones).

The product of its digits is 2700000, while the sum is 47.

The spelling of 133523554521125 in words is "one hundred thirty-three trillion, five hundred twenty-three billion, five hundred fifty-four million, five hundred twenty-one thousand, one hundred twenty-five".