133703666 has 4 divisors (see below), whose sum is σ = 200555502. Its totient is φ = 66851832.

The previous prime is 133703597. The next prime is 133703671. The reversal of 133703666 is 666307331.

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., 132733441 + 970225 = 11521^2 + 985^2 .

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 as a sum of consecutive naturals, namely, 33425915 + ... + 33425918.

Almost surely, 2^133703666 is an apocalyptic number.

133703666 is a deficient number, since it is larger than the sum of its proper divisors (66851836).

133703666 is an equidigital number, since it uses as much as digits as its factorization.

133703666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66851835.

The product of its (nonzero) digits is 40824, while the sum is 35.

The square root of 133703666 is about 11563.0301391979. The cubic root of 133703666 is about 511.3455000608.

The spelling of 133703666 in words is "one hundred thirty-three million, seven hundred three thousand, six hundred sixty-six".