133814989 has 24 divisors (see below), whose sum is σ = 175432320. Its totient is φ = 99723360.

The previous prime is 133814987. The next prime is 133814999. The reversal of 133814989 is 989418331.

It is a happy number.

It is not a de Polignac number, because 133814989 - 2¹ = 133814987 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133814987) 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 23 ways as a sum of consecutive naturals, for example, 16047 + ... + 22915.

It is an arithmetic number, because the mean of its divisors is an integer number (7309680).

Almost surely, 2^133814989 is an apocalyptic number.

It is an amenable number.

133814989 is a deficient number, since it is larger than the sum of its proper divisors (41617331).

133814989 is a wasteful number, since it uses less digits than its factorization.

133814989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6921 (or 6910 counting only the distinct ones).

The product of its digits is 186624, while the sum is 46.

The square root of 133814989 is about 11567.8428844794. The cubic root of 133814989 is about 511.4873778055.

The spelling of 133814989 in words is "one hundred thirty-three million, eight hundred fourteen thousand, nine hundred eighty-nine".