133364687 has 4 divisors (see below), whose sum is σ = 136969176. Its totient is φ = 129760200.

The previous prime is 133364669. The next prime is 133364701. The reversal of 133364687 is 786463331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 786463331 = 311 ⋅2528821.

It is a cyclic number.

It is not a de Polignac number, because 133364687 - 2¹⁶ = 133299151 is a prime.

It is a super-2 number, since 2×133364687² = 35572279477215938, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133364657) 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, 1802189 + ... + 1802262.

It is an arithmetic number, because the mean of its divisors is an integer number (34242294).

Almost surely, 2^133364687 is an apocalyptic number.

133364687 is a deficient number, since it is larger than the sum of its proper divisors (3604489).

133364687 is an equidigital number, since it uses as much as digits as its factorization.

133364687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3604488.

The product of its digits is 217728, while the sum is 41.

The square root of 133364687 is about 11548.3629575797. The cubic root of 133364687 is about 510.9129961414.

The spelling of 133364687 in words is "one hundred thirty-three million, three hundred sixty-four thousand, six hundred eighty-seven".