133869273 has 8 divisors (see below), whose sum is σ = 178783200. Its totient is φ = 89100768.

The previous prime is 133869259. The next prime is 133869287. The reversal of 133869273 is 372968331.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (133869259) and next prime (133869287).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 133869273 - 2⁴ = 133869257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133869233) 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 7 ways as a sum of consecutive naturals, for example, 34188 + ... + 37901.

It is an arithmetic number, because the mean of its divisors is an integer number (22347900).

Almost surely, 2^133869273 is an apocalyptic number.

It is an amenable number.

133869273 is a deficient number, since it is larger than the sum of its proper divisors (44913927).

133869273 is an equidigital number, since it uses as much as digits as its factorization.

133869273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72711.

The product of its digits is 163296, while the sum is 42.

The square root of 133869273 is about 11570.1889785777. The cubic root of 133869273 is about 511.5565325575.

The spelling of 133869273 in words is "one hundred thirty-three million, eight hundred sixty-nine thousand, two hundred seventy-three".