133759987 has 2 divisors, whose sum is σ = 133759988. Its totient is φ = 133759986.

The previous prime is 133759963. The next prime is 133759991. The reversal of 133759987 is 789957331.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 133759987 - 2¹⁹ = 133235699 is a prime.

It is not a weakly prime, because it can be changed into another prime (133759957) 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, 66879993 + 66879994.

It is an arithmetic number, because the mean of its divisors is an integer number (66879994).

Almost surely, 2^133759987 is an apocalyptic number.

133759987 is a deficient number, since it is larger than the sum of its proper divisors (1).

133759987 is an equidigital number, since it uses as much as digits as its factorization.

133759987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1428840, while the sum is 52.

The square root of 133759987 is about 11565.4652738228. The cubic root of 133759987 is about 511.4172892842.

The spelling of 133759987 in words is "one hundred thirty-three million, seven hundred fifty-nine thousand, nine hundred eighty-seven".