148007309 has 2 divisors, whose sum is σ = 148007310. Its totient is φ = 148007308.

The previous prime is 148007303. The next prime is 148007311. The reversal of 148007309 is 903700841.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101808100 + 46199209 = 10090^2 + 6797^2 .

It is a cyclic number.

It is not a de Polignac number, because 148007309 - 2²⁰ = 146958733 is a prime.

Together with 148007311, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (148007303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74003654 + 74003655.

It is an arithmetic number, because the mean of its divisors is an integer number (74003655).

Almost surely, 2^148007309 is an apocalyptic number.

It is an amenable number.

148007309 is a deficient number, since it is larger than the sum of its proper divisors (1).

148007309 is an equidigital number, since it uses as much as digits as its factorization.

148007309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 148007309 is about 12165.8254549373. The cubic root of 148007309 is about 528.9659546678.

The spelling of 148007309 in words is "one hundred forty-eight million, seven thousand, three hundred nine".