133224439 has 2 divisors, whose sum is σ = 133224440. Its totient is φ = 133224438.

The previous prime is 133224433. The next prime is 133224451. The reversal of 133224439 is 934422331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 133224439 - 2¹¹ = 133222391 is a prime.

It is a super-2 number, since 2×133224439² = 35497502293729442, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 133224439.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133224433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66612219 + 66612220.

It is an arithmetic number, because the mean of its divisors is an integer number (66612220).

Almost surely, 2^133224439 is an apocalyptic number.

133224439 is a deficient number, since it is larger than the sum of its proper divisors (1).

133224439 is an equidigital number, since it uses as much as digits as its factorization.

133224439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 31.

The square root of 133224439 is about 11542.2891577018. The cubic root of 133224439 is about 510.7338391252.

The spelling of 133224439 in words is "one hundred thirty-three million, two hundred twenty-four thousand, four hundred thirty-nine".