133412443 has 8 divisors (see below), whose sum is σ = 139328928. Its totient is φ = 127505664.

The previous prime is 133412407. The next prime is 133412449. The reversal of 133412443 is 344214331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133412443 is a prime.

It is a super-3 number, since 3×133412443³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133412449) 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 in 7 ways as a sum of consecutive naturals, for example, 50155 + ... + 52747.

It is an arithmetic number, because the mean of its divisors is an integer number (17416116).

Almost surely, 2^133412443 is an apocalyptic number.

133412443 is a deficient number, since it is larger than the sum of its proper divisors (5916485).

133412443 is a wasteful number, since it uses less digits than its factorization.

133412443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4853.

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

The square root of 133412443 is about 11550.4304248803. The cubic root of 133412443 is about 510.9739724260.

Adding to 133412443 its reverse (344214331), we get a palindrome (477626774).

The spelling of 133412443 in words is "one hundred thirty-three million, four hundred twelve thousand, four hundred forty-three".