148947439 has 2 divisors, whose sum is σ = 148947440. Its totient is φ = 148947438.

The previous prime is 148947433. The next prime is 148947527. The reversal of 148947439 is 934749841.

148947439 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 148947439 - 2³ = 148947431 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 148947392 and 148947401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (148947431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74473719 + 74473720.

It is an arithmetic number, because the mean of its divisors is an integer number (74473720).

Almost surely, 2^148947439 is an apocalyptic number.

148947439 is a deficient number, since it is larger than the sum of its proper divisors (1).

148947439 is an equidigital number, since it uses as much as digits as its factorization.

148947439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 49.

The square root of 148947439 is about 12204.4024433808. The cubic root of 148947439 is about 530.0835740997.

The spelling of 148947439 in words is "one hundred forty-eight million, nine hundred forty-seven thousand, four hundred thirty-nine".