133932161 has 8 divisors (see below), whose sum is σ = 147555648. Its totient is φ = 120550000.

The previous prime is 133932133. The next prime is 133932167. The reversal of 133932161 is 161239331.

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 133932161 - 2¹⁰ = 133931137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133932167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59165 + ... + 61386.

It is an arithmetic number, because the mean of its divisors is an integer number (18444456).

Almost surely, 2^133932161 is an apocalyptic number.

133932161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

133932161 is a deficient number, since it is larger than the sum of its proper divisors (13623487).

133932161 is a wasteful number, since it uses less digits than its factorization.

133932161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120663.

The product of its digits is 2916, while the sum is 29.

The square root of 133932161 is about 11572.9063333287. The cubic root of 133932161 is about 511.6366249496.

The spelling of 133932161 in words is "one hundred thirty-three million, nine hundred thirty-two thousand, one hundred sixty-one".