133934981651 has 2 divisors, whose sum is σ = 133934981652. Its totient is φ = 133934981650.

The previous prime is 133934981639. The next prime is 133934981689. The reversal of 133934981651 is 156189439331.

It is a weak prime.

It is an emirp because it is prime and its reverse (156189439331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 133934981651 - 2¹⁸ = 133934719507 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 133934981593 and 133934981602.

It is not a weakly prime, because it can be changed into another prime (133934980651) 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, 66967490825 + 66967490826.

It is an arithmetic number, because the mean of its divisors is an integer number (66967490826).

Almost surely, 2^133934981651 is an apocalyptic number.

133934981651 is a deficient number, since it is larger than the sum of its proper divisors (1).

133934981651 is an equidigital number, since it uses as much as digits as its factorization.

133934981651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2099520, while the sum is 53.

The spelling of 133934981651 in words is "one hundred thirty-three billion, nine hundred thirty-four million, nine hundred eighty-one thousand, six hundred fifty-one".