133072439 has 2 divisors, whose sum is σ = 133072440. Its totient is φ = 133072438.

The previous prime is 133072421. The next prime is 133072483. The reversal of 133072439 is 934270331.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133072439 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133072939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66536219 + 66536220.

It is an arithmetic number, because the mean of its divisors is an integer number (66536220).

Almost surely, 2^133072439 is an apocalyptic number.

133072439 is a deficient number, since it is larger than the sum of its proper divisors (1).

133072439 is an equidigital number, since it uses as much as digits as its factorization.

133072439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 32.

The square root of 133072439 is about 11535.7027961022. The cubic root of 133072439 is about 510.5395277137.

The spelling of 133072439 in words is "one hundred thirty-three million, seventy-two thousand, four hundred thirty-nine".