133161140677281 has 4 divisors (see below), whose sum is σ = 177548187569712. Its totient is φ = 88774093784852.

The previous prime is 133161140677249. The next prime is 133161140677289. The reversal of 133161140677281 is 182776041161331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 133161140677281 - 2⁵ = 133161140677249 is a prime.

It is a super-2 number, since 2×133161140677281² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (133161140677289) 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, 22193523446211 + ... + 22193523446216.

It is an arithmetic number, because the mean of its divisors is an integer number (44387046892428).

Almost surely, 2^{133161140677281} is an apocalyptic number.

It is an amenable number.

133161140677281 is a deficient number, since it is larger than the sum of its proper divisors (44387046892431).

133161140677281 is an equidigital number, since it uses as much as digits as its factorization.

133161140677281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44387046892430.

The product of its (nonzero) digits is 1016064, while the sum is 51.

The spelling of 133161140677281 in words is "one hundred thirty-three trillion, one hundred sixty-one billion, one hundred forty million, six hundred seventy-seven thousand, two hundred eighty-one".