133456689 has 12 divisors (see below), whose sum is σ = 192914176. Its totient is φ = 88904952.

The previous prime is 133456679. The next prime is 133456691. The reversal of 133456689 is 986654331.

133456689 is a `hidden beast` number, since 1 + 3 + 3 + 4 + 566 + 89 = 666.

It is not a de Polignac number, because 133456689 - 2⁹ = 133456177 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (133456639) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9372 + ... + 18834.

Almost surely, 2^133456689 is an apocalyptic number.

It is an amenable number.

133456689 is a deficient number, since it is larger than the sum of its proper divisors (59457487).

133456689 is a wasteful number, since it uses less digits than its factorization.

133456689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11036 (or 11033 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The square root of 133456689 is about 11552.3456059798. The cubic root of 133456689 is about 511.0304540528.

The spelling of 133456689 in words is "one hundred thirty-three million, four hundred fifty-six thousand, six hundred eighty-nine".