133544143 has 2 divisors, whose sum is σ = 133544144. Its totient is φ = 133544142.

The previous prime is 133544077. The next prime is 133544149. The reversal of 133544143 is 341445331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 133544143 - 2¹³ = 133535951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133544149) 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 as a sum of consecutive naturals, namely, 66772071 + 66772072.

It is an arithmetic number, because the mean of its divisors is an integer number (66772072).

Almost surely, 2^133544143 is an apocalyptic number.

133544143 is a deficient number, since it is larger than the sum of its proper divisors (1).

133544143 is an equidigital number, since it uses as much as digits as its factorization.

133544143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 28.

The square root of 133544143 is about 11556.1301048405. The cubic root of 133544143 is about 511.1420555496.

Adding to 133544143 its reverse (341445331), we get a palindrome (474989474).

The spelling of 133544143 in words is "one hundred thirty-three million, five hundred forty-four thousand, one hundred forty-three".