133330787 has 4 divisors (see below), whose sum is σ = 133361256. Its totient is φ = 133300320.

The previous prime is 133330759. The next prime is 133330789. The reversal of 133330787 is 787033331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 787033331 = 7 ⋅112433333.

It is a cyclic number.

It is not a de Polignac number, because 133330787 - 2⁸ = 133330531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133330789) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7289 + ... + 17882.

It is an arithmetic number, because the mean of its divisors is an integer number (33340314).

Almost surely, 2^133330787 is an apocalyptic number.

133330787 is a deficient number, since it is larger than the sum of its proper divisors (30469).

133330787 is an equidigital number, since it uses as much as digits as its factorization.

133330787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30468.

The product of its (nonzero) digits is 31752, while the sum is 35.

The square root of 133330787 is about 11546.8951237984. The cubic root of 133330787 is about 510.8697027762.

The spelling of 133330787 in words is "one hundred thirty-three million, three hundred thirty thousand, seven hundred eighty-seven".