133443142 has 16 divisors (see below), whose sum is σ = 228967200. Its totient is φ = 57138048.

The previous prime is 133443139. The next prime is 133443143. The reversal of 133443142 is 241344331.

133443142 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133443143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14484 + ... + 21832.

It is an arithmetic number, because the mean of its divisors is an integer number (14310450).

Almost surely, 2^133443142 is an apocalyptic number.

133443142 is a deficient number, since it is larger than the sum of its proper divisors (95524058).

133443142 is a wasteful number, since it uses less digits than its factorization.

133443142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8655.

The product of its digits is 3456, while the sum is 25.

The square root of 133443142 is about 11551.7592599569. The cubic root of 133443142 is about 511.0131621412.

Adding to 133443142 its reverse (241344331), we get a palindrome (374787473).

The spelling of 133443142 in words is "one hundred thirty-three million, four hundred forty-three thousand, one hundred forty-two".