133988443 has 2 divisors, whose sum is σ = 133988444. Its totient is φ = 133988442.

The previous prime is 133988411. The next prime is 133988467. The reversal of 133988443 is 344889331.

It is a strong prime.

It is an emirp because it is prime and its reverse (344889331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 133988443 - 2⁵ = 133988411 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 133988443.

It is not a weakly prime, because it can be changed into another prime (133985443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66994221 + 66994222.

It is an arithmetic number, because the mean of its divisors is an integer number (66994222).

Almost surely, 2^133988443 is an apocalyptic number.

133988443 is a deficient number, since it is larger than the sum of its proper divisors (1).

133988443 is an equidigital number, since it uses as much as digits as its factorization.

133988443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 248832, while the sum is 43.

The square root of 133988443 is about 11575.3377056568. The cubic root of 133988443 is about 511.7082828686.

It can be divided in two parts, 133988 and 443, that added together give a palindrome (134431).

The spelling of 133988443 in words is "one hundred thirty-three million, nine hundred eighty-eight thousand, four hundred forty-three".