148320439 has 2 divisors, whose sum is σ = 148320440. Its totient is φ = 148320438.

The previous prime is 148320437. The next prime is 148320443. The reversal of 148320439 is 934023841.

It is a weak prime.

It is an emirp because it is prime and its reverse (934023841) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 148320439 - 2¹ = 148320437 is a prime.

Together with 148320437, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (148320437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74160219 + 74160220.

It is an arithmetic number, because the mean of its divisors is an integer number (74160220).

Almost surely, 2^148320439 is an apocalyptic number.

148320439 is a deficient number, since it is larger than the sum of its proper divisors (1).

148320439 is an equidigital number, since it uses as much as digits as its factorization.

148320439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 148320439 is about 12178.6879014120. The cubic root of 148320439 is about 529.3387255343.

The spelling of 148320439 in words is "one hundred forty-eight million, three hundred twenty thousand, four hundred thirty-nine".