134663221 has 24 divisors (see below), whose sum is σ = 171793440. Its totient is φ = 104378400.

The previous prime is 134663167. The next prime is 134663231. The reversal of 134663221 is 122366431.

It is not a de Polignac number, because 134663221 - 2¹¹ = 134661173 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 134663221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134663231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 122886 + ... + 123976.

It is an arithmetic number, because the mean of its divisors is an integer number (7158060).

Almost surely, 2^134663221 is an apocalyptic number.

134663221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

134663221 is a deficient number, since it is larger than the sum of its proper divisors (37130219).

134663221 is a wasteful number, since it uses less digits than its factorization.

134663221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1345 (or 1338 counting only the distinct ones).

The product of its digits is 5184, while the sum is 28.

The square root of 134663221 is about 11604.4483281197. The cubic root of 134663221 is about 512.5658480532.

The spelling of 134663221 in words is "one hundred thirty-four million, six hundred sixty-three thousand, two hundred twenty-one".