133380439 has 2 divisors, whose sum is σ = 133380440. Its totient is φ = 133380438.

The previous prime is 133380409. The next prime is 133380491. The reversal of 133380439 is 934083331.

It is a weak prime.

It is an emirp because it is prime and its reverse (934083331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 133380439 - 2⁷ = 133380311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133380409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66690219 + 66690220.

It is an arithmetic number, because the mean of its divisors is an integer number (66690220).

Almost surely, 2^133380439 is an apocalyptic number.

133380439 is a deficient number, since it is larger than the sum of its proper divisors (1).

133380439 is an equidigital number, since it uses as much as digits as its factorization.

133380439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 133380439 is about 11549.0449388683. The cubic root of 133380439 is about 510.9331103732.

The spelling of 133380439 in words is "one hundred thirty-three million, three hundred eighty thousand, four hundred thirty-nine".