133099989 has 32 divisors (see below), whose sum is σ = 201924096. Its totient is φ = 77267520.

The previous prime is 133099973. The next prime is 133100017. The reversal of 133099989 is 989990331.

It is not a de Polignac number, because 133099989 - 2⁴ = 133099973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133099949) 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 in 31 ways as a sum of consecutive naturals, for example, 80994 + ... + 82620.

It is an arithmetic number, because the mean of its divisors is an integer number (6310128).

Almost surely, 2^133099989 is an apocalyptic number.

It is an amenable number.

133099989 is a deficient number, since it is larger than the sum of its proper divisors (68824107).

133099989 is a wasteful number, since it uses less digits than its factorization.

133099989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1745.

The product of its (nonzero) digits is 472392, while the sum is 51.

The square root of 133099989 is about 11536.8968531404. The cubic root of 133099989 is about 510.5747576320.

The spelling of 133099989 in words is "one hundred thirty-three million, ninety-nine thousand, nine hundred eighty-nine".