133334881 has 2 divisors, whose sum is σ = 133334882. Its totient is φ = 133334880.

The previous prime is 133334879. The next prime is 133334897. The reversal of 133334881 is 188433331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82083600 + 51251281 = 9060^2 + 7159^2 .

It is a cyclic number.

It is not a de Polignac number, because 133334881 - 2¹ = 133334879 is a prime.

It is a super-2 number, since 2×133334881² = 35556380982568322, which contains 22 as substring.

Together with 133334879, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (133334801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66667440 + 66667441.

It is an arithmetic number, because the mean of its divisors is an integer number (66667441).

Almost surely, 2^133334881 is an apocalyptic number.

It is an amenable number.

133334881 is a deficient number, since it is larger than the sum of its proper divisors (1).

133334881 is an equidigital number, since it uses as much as digits as its factorization.

133334881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 34.

The square root of 133334881 is about 11547.0723995305. The cubic root of 133334881 is about 510.8749315740.

The spelling of 133334881 in words is "one hundred thirty-three million, three hundred thirty-four thousand, eight hundred eighty-one".