133155534481 has 2 divisors, whose sum is σ = 133155534482. Its totient is φ = 133155534480.

The previous prime is 133155534467. The next prime is 133155534527. The reversal of 133155534481 is 184435551331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103758717456 + 29396817025 = 322116^2 + 171455^2 .

It is a cyclic number.

It is not a de Polignac number, because 133155534481 - 2⁹ = 133155533969 is a prime.

It is a super-2 number, since 2×133155534481² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (133155534781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66577767240 + 66577767241.

It is an arithmetic number, because the mean of its divisors is an integer number (66577767241).

Almost surely, 2^133155534481 is an apocalyptic number.

It is an amenable number.

133155534481 is a deficient number, since it is larger than the sum of its proper divisors (1).

133155534481 is an equidigital number, since it uses as much as digits as its factorization.

133155534481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432000, while the sum is 43.

The spelling of 133155534481 in words is "one hundred thirty-three billion, one hundred fifty-five million, five hundred thirty-four thousand, four hundred eighty-one".