133268111 has 4 divisors (see below), whose sum is σ = 133938000. Its totient is φ = 132598224.

The previous prime is 133268099. The next prime is 133268119. The reversal of 133268111 is 111862331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111862331 = 7 ⋅15980333.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133268111 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 (133268119) 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, 334646 + ... + 335043.

It is an arithmetic number, because the mean of its divisors is an integer number (33484500).

Almost surely, 2^133268111 is an apocalyptic number.

133268111 is a deficient number, since it is larger than the sum of its proper divisors (669889).

133268111 is an equidigital number, since it uses as much as digits as its factorization.

133268111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669888.

The product of its digits is 864, while the sum is 26.

The square root of 133268111 is about 11544.1808284521. The cubic root of 133268111 is about 510.7896405273.

The spelling of 133268111 in words is "one hundred thirty-three million, two hundred sixty-eight thousand, one hundred eleven".