148018009 has 2 divisors, whose sum is σ = 148018010. Its totient is φ = 148018008.

The previous prime is 148018007. The next prime is 148018063. The reversal of 148018009 is 900810841.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78712384 + 69305625 = 8872^2 + 8325^2 .

It is a cyclic number.

It is not a de Polignac number, because 148018009 - 2¹ = 148018007 is a prime.

Together with 148018007, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (148018007) 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, 74009004 + 74009005.

It is an arithmetic number, because the mean of its divisors is an integer number (74009005).

Almost surely, 2^148018009 is an apocalyptic number.

It is an amenable number.

148018009 is a deficient number, since it is larger than the sum of its proper divisors (1).

148018009 is an equidigital number, since it uses as much as digits as its factorization.

148018009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 31.

The square root of 148018009 is about 12166.2652034221. The cubic root of 148018009 is about 528.9787013341.

The spelling of 148018009 in words is "one hundred forty-eight million, eighteen thousand, nine".