133040987 has 2 divisors, whose sum is σ = 133040988. Its totient is φ = 133040986.

The previous prime is 133040981. The next prime is 133040989. The reversal of 133040987 is 789040331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 133040987 - 2⁸ = 133040731 is a prime.

Together with 133040989, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (133040981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66520493 + 66520494.

It is an arithmetic number, because the mean of its divisors is an integer number (66520494).

Almost surely, 2^133040987 is an apocalyptic number.

133040987 is a deficient number, since it is larger than the sum of its proper divisors (1).

133040987 is an equidigital number, since it uses as much as digits as its factorization.

133040987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 133040987 is about 11534.3394696012. The cubic root of 133040987 is about 510.4993021178.

The spelling of 133040987 in words is "one hundred thirty-three million, forty thousand, nine hundred eighty-seven".