133665106 has 8 divisors (see below), whose sum is σ = 200933964. Its totient is φ = 66687120.

The previous prime is 133665079. The next prime is 133665131. The reversal of 133665106 is 601566331.

It can be written as a sum of positive squares in 2 ways, for example, as 116100625 + 17564481 = 10775^2 + 4191^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71565 + ... + 73408.

Almost surely, 2^133665106 is an apocalyptic number.

133665106 is a deficient number, since it is larger than the sum of its proper divisors (67268858).

133665106 is a wasteful number, since it uses less digits than its factorization.

133665106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145436.

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 133665106 is about 11561.3626359526. The cubic root of 133665106 is about 511.2963381620.

The spelling of 133665106 in words is "one hundred thirty-three million, six hundred sixty-five thousand, one hundred six".