148945439 has 2 divisors, whose sum is σ = 148945440. Its totient is φ = 148945438.

The previous prime is 148945403. The next prime is 148945453. The reversal of 148945439 is 934549841.

148945439 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (934549841) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 148945439 - 2⁸ = 148945183 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 148945393 and 148945402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (148945499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74472719 + 74472720.

It is an arithmetic number, because the mean of its divisors is an integer number (74472720).

Almost surely, 2^148945439 is an apocalyptic number.

148945439 is a deficient number, since it is larger than the sum of its proper divisors (1).

148945439 is an equidigital number, since it uses as much as digits as its factorization.

148945439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 622080, while the sum is 47.

The square root of 148945439 is about 12204.3205054604. The cubic root of 148945439 is about 530.0812015136.

The spelling of 148945439 in words is "one hundred forty-eight million, nine hundred forty-five thousand, four hundred thirty-nine".