133766338 has 4 divisors (see below), whose sum is σ = 200649510. Its totient is φ = 66883168.

The previous prime is 133766323. The next prime is 133766341. The reversal of 133766338 is 833667331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 80227849 + 53538489 = 8957^2 + 7317^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 133766338.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33441583 + ... + 33441586.

Almost surely, 2^133766338 is an apocalyptic number.

133766338 is a deficient number, since it is larger than the sum of its proper divisors (66883172).

133766338 is an equidigital number, since it uses as much as digits as its factorization.

133766338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66883171.

The product of its digits is 163296, while the sum is 40.

The square root of 133766338 is about 11565.7398379870. The cubic root of 133766338 is about 511.4253832837.

The spelling of 133766338 in words is "one hundred thirty-three million, seven hundred sixty-six thousand, three hundred thirty-eight".