133911343 has 4 divisors (see below), whose sum is σ = 134077680. Its totient is φ = 133745008.

The previous prime is 133911317. The next prime is 133911347. The reversal of 133911343 is 343119331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 343119331 = 2671 ⋅128461.

It is a cyclic number.

It is not a de Polignac number, because 133911343 - 2⁵ = 133911311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133911347) 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, 81955 + ... + 83572.

It is an arithmetic number, because the mean of its divisors is an integer number (33519420).

Almost surely, 2^133911343 is an apocalyptic number.

133911343 is a deficient number, since it is larger than the sum of its proper divisors (166337).

133911343 is an equidigital number, since it uses as much as digits as its factorization.

133911343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166336.

The product of its digits is 2916, while the sum is 28.

The square root of 133911343 is about 11572.0068700291. The cubic root of 133911343 is about 511.6101145056.

The spelling of 133911343 in words is "one hundred thirty-three million, nine hundred eleven thousand, three hundred forty-three".