133812547013 has 4 divisors (see below), whose sum is σ = 133813422540. Its totient is φ = 133811671488.

The previous prime is 133812547009. The next prime is 133812547039. The reversal of 133812547013 is 310745218331.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 75450201124 + 58362345889 = 274682^2 + 241583^2 .

It is a cyclic number.

It is not a de Polignac number, because 133812547013 - 2² = 133812547009 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 (133812547213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141818 + ... + 536411.

It is an arithmetic number, because the mean of its divisors is an integer number (33453355635).

Almost surely, 2^133812547013 is an apocalyptic number.

It is an amenable number.

133812547013 is a deficient number, since it is larger than the sum of its proper divisors (875527).

133812547013 is an equidigital number, since it uses as much as digits as its factorization.

133812547013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 875526.

The product of its (nonzero) digits is 60480, while the sum is 38.

The spelling of 133812547013 in words is "one hundred thirty-three billion, eight hundred twelve million, five hundred forty-seven thousand, thirteen".