148789439 has 2 divisors, whose sum is σ = 148789440. Its totient is φ = 148789438.

The previous prime is 148789427. The next prime is 148789477. The reversal of 148789439 is 934987841.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 148789439 - 2⁸ = 148789183 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 (148789939) 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, 74394719 + 74394720.

It is an arithmetic number, because the mean of its divisors is an integer number (74394720).

Almost surely, 2^148789439 is an apocalyptic number.

148789439 is a deficient number, since it is larger than the sum of its proper divisors (1).

148789439 is an equidigital number, since it uses as much as digits as its factorization.

148789439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1741824, while the sum is 53.

The square root of 148789439 is about 12197.9276518596. The cubic root of 148789439 is about 529.8960743186.

The spelling of 148789439 in words is "one hundred forty-eight million, seven hundred eighty-nine thousand, four hundred thirty-nine".