133333142 has 16 divisors (see below), whose sum is σ = 212602320. Its totient is φ = 62496768.

The previous prime is 133333141. The next prime is 133333147. The reversal of 133333142 is 241333331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133333141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1109 + ... + 16367.

It is an arithmetic number, because the mean of its divisors is an integer number (13287645).

Almost surely, 2^133333142 is an apocalyptic number.

133333142 is a deficient number, since it is larger than the sum of its proper divisors (79269178).

133333142 is a wasteful number, since it uses less digits than its factorization.

133333142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15535.

The product of its digits is 1944, while the sum is 23.

The square root of 133333142 is about 11546.9970988132. The cubic root of 133333142 is about 510.8727105614.

Adding to 133333142 its reverse (241333331), we get a palindrome (374666473).

The spelling of 133333142 in words is "one hundred thirty-three million, three hundred thirty-three thousand, one hundred forty-two".