133664845 has 8 divisors (see below), whose sum is σ = 167371776. Its totient is φ = 102282576.

The previous prime is 133664837. The next prime is 133664873. The reversal of 133664845 is 548466331.

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 133664845 - 2³ = 133664837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133664798 and 133664807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 581037 + ... + 581266.

It is an arithmetic number, because the mean of its divisors is an integer number (20921472).

Almost surely, 2^133664845 is an apocalyptic number.

It is an amenable number.

133664845 is a deficient number, since it is larger than the sum of its proper divisors (33706931).

133664845 is a wasteful number, since it uses less digits than its factorization.

133664845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1162331.

The product of its digits is 207360, while the sum is 40.

The square root of 133664845 is about 11561.3513483502. The cubic root of 133664845 is about 511.2960053690.

The spelling of 133664845 in words is "one hundred thirty-three million, six hundred sixty-four thousand, eight hundred forty-five".