133540965859839 has 4 divisors (see below), whose sum is σ = 178054621146456. Its totient is φ = 89027310573224.

The previous prime is 133540965859837. The next prime is 133540965859841. The reversal of 133540965859839 is 938958569045331.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (133540965859837) and next prime (133540965859841).

It is a cyclic number.

It is not a de Polignac number, because 133540965859839 - 2¹ = 133540965859837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133540965859837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22256827643304 + ... + 22256827643309.

It is an arithmetic number, because the mean of its divisors is an integer number (44513655286614).

Almost surely, 2^{133540965859839} is an apocalyptic number.

133540965859839 is a deficient number, since it is larger than the sum of its proper divisors (44513655286617).

133540965859839 is an equidigital number, since it uses as much as digits as its factorization.

133540965859839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44513655286616.

The product of its (nonzero) digits is 3779136000, while the sum is 78.

The spelling of 133540965859839 in words is "one hundred thirty-three trillion, five hundred forty billion, nine hundred sixty-five million, eight hundred fifty-nine thousand, eight hundred thirty-nine".