133550143 has 2 divisors, whose sum is σ = 133550144. Its totient is φ = 133550142.

The previous prime is 133550141. The next prime is 133550149. The reversal of 133550143 is 341055331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 133550143 - 2¹ = 133550141 is a prime.

Together with 133550141, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133550141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66775071 + 66775072.

It is an arithmetic number, because the mean of its divisors is an integer number (66775072).

Almost surely, 2^133550143 is an apocalyptic number.

133550143 is a deficient number, since it is larger than the sum of its proper divisors (1).

133550143 is an equidigital number, since it uses as much as digits as its factorization.

133550143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 133550143 is about 11556.3897044016. The cubic root of 133550143 is about 511.1497104627.

The spelling of 133550143 in words is "one hundred thirty-three million, five hundred fifty thousand, one hundred forty-three".