133646164 has 12 divisors (see below), whose sum is σ = 235723264. Its totient is φ = 66296664.

The previous prime is 133646143. The next prime is 133646203. The reversal of 133646164 is 461646331.

133646164 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×133646164² = 35722594303829792, which contains 22 as substring.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131034 + ... + 132049.

Almost surely, 2^133646164 is an apocalyptic number.

It is an amenable number.

133646164 is a deficient number, since it is larger than the sum of its proper divisors (102077100).

133646164 is a wasteful number, since it uses less digits than its factorization.

133646164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263214 (or 263212 counting only the distinct ones).

The product of its digits is 31104, while the sum is 34.

The square root of 133646164 is about 11560.5434128332. The cubic root of 133646164 is about 511.2721846810.

The spelling of 133646164 in words is "one hundred thirty-three million, six hundred forty-six thousand, one hundred sixty-four".