133242111 has 16 divisors (see below), whose sum is σ = 199897600. Its totient is φ = 87702264.

The previous prime is 133242077. The next prime is 133242121. The reversal of 133242111 is 111242331.

It is not a de Polignac number, because 133242111 - 2¹⁷ = 133111039 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 (133242121) 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 15 ways as a sum of consecutive naturals, for example, 29101 + ... + 33366.

It is an arithmetic number, because the mean of its divisors is an integer number (12493600).

Almost surely, 2^133242111 is an apocalyptic number.

133242111 is a deficient number, since it is larger than the sum of its proper divisors (66655489).

133242111 is an equidigital number, since it uses as much as digits as its factorization.

133242111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62555 (or 62549 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 133242111 is about 11543.0546650356. The cubic root of 133242111 is about 510.7564207912.

Adding to 133242111 its reverse (111242331), we get a palindrome (244484442).

The spelling of 133242111 in words is "one hundred thirty-three million, two hundred forty-two thousand, one hundred eleven".