148020839 has 2 divisors, whose sum is σ = 148020840. Its totient is φ = 148020838.

The previous prime is 148020833. The next prime is 148020841. The reversal of 148020839 is 938020841.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 148020839 - 2⁴ = 148020823 is a prime.

Together with 148020841, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_8339318 and since 148020839 and 8339318 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 148020799 and 148020808.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (148020833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74010419 + 74010420.

It is an arithmetic number, because the mean of its divisors is an integer number (74010420).

Almost surely, 2^148020839 is an apocalyptic number.

148020839 is a deficient number, since it is larger than the sum of its proper divisors (1).

148020839 is an equidigital number, since it uses as much as digits as its factorization.

148020839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 148020839 is about 12166.3815080738. The cubic root of 148020839 is about 528.9820725459.

The spelling of 148020839 in words is "one hundred forty-eight million, twenty thousand, eight hundred thirty-nine".