133104687 has 4 divisors (see below), whose sum is σ = 177472920. Its totient is φ = 88736456.

The previous prime is 133104641. The next prime is 133104701. The reversal of 133104687 is 786401331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 786401331 = 3 ⋅262133777.

It is a cyclic number.

It is not a de Polignac number, because 133104687 - 2²³ = 124716079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133104487) 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, 22184112 + ... + 22184117.

It is an arithmetic number, because the mean of its divisors is an integer number (44368230).

Almost surely, 2^133104687 is an apocalyptic number.

133104687 is a deficient number, since it is larger than the sum of its proper divisors (44368233).

133104687 is an equidigital number, since it uses as much as digits as its factorization.

133104687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44368232.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 133104687 is about 11537.1004589541. The cubic root of 133104687 is about 510.5807647750.

The spelling of 133104687 in words is "one hundred thirty-three million, one hundred four thousand, six hundred eighty-seven".