133330667 has 4 divisors (see below), whose sum is σ = 134576856. Its totient is φ = 132084480.

The previous prime is 133330663. The next prime is 133330679. The reversal of 133330667 is 766033331.

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

It is a cyclic number.

It is not a de Polignac number, because 133330667 - 2² = 133330663 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133330663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 622934 + ... + 623147.

It is an arithmetic number, because the mean of its divisors is an integer number (33644214).

Almost surely, 2^133330667 is an apocalyptic number.

133330667 is a deficient number, since it is larger than the sum of its proper divisors (1246189).

133330667 is a wasteful number, since it uses less digits than its factorization.

133330667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1246188.

The product of its (nonzero) digits is 20412, while the sum is 32.

The square root of 133330667 is about 11546.8899275952. The cubic root of 133330667 is about 510.8695495124.

Adding to 133330667 its reverse (766033331), we get a palindrome (899363998).

The spelling of 133330667 in words is "one hundred thirty-three million, three hundred thirty thousand, six hundred sixty-seven".