133547668531 has 2 divisors, whose sum is σ = 133547668532. Its totient is φ = 133547668530.

The previous prime is 133547668459. The next prime is 133547668561. The reversal of 133547668531 is 135866745331.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 133547668531 - 2¹³ = 133547660339 is a prime.

It is a super-2 number, since 2×133547668531² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (133547668561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66773834265 + 66773834266.

It is an arithmetic number, because the mean of its divisors is an integer number (66773834266).

Almost surely, 2^133547668531 is an apocalyptic number.

133547668531 is a deficient number, since it is larger than the sum of its proper divisors (1).

133547668531 is an equidigital number, since it uses as much as digits as its factorization.

133547668531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5443200, while the sum is 52.

The spelling of 133547668531 in words is "one hundred thirty-three billion, five hundred forty-seven million, six hundred sixty-eight thousand, five hundred thirty-one".