133689995 has 8 divisors (see below), whose sum is σ = 160935984. Its totient is φ = 106613344.

The previous prime is 133689953. The next prime is 133690019. The reversal of 133689995 is 599986331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 133689995 - 2⁶ = 133689931 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 40589 + ... + 43758.

It is an arithmetic number, because the mean of its divisors is an integer number (20116998).

Almost surely, 2^133689995 is an apocalyptic number.

133689995 is a deficient number, since it is larger than the sum of its proper divisors (27245989).

133689995 is an equidigital number, since it uses as much as digits as its factorization.

133689995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84669.

The product of its digits is 1574640, while the sum is 53.

The square root of 133689995 is about 11562.4389728119. The cubic root of 133689995 is about 511.3280713624.

The spelling of 133689995 in words is "one hundred thirty-three million, six hundred eighty-nine thousand, nine hundred ninety-five".