148085009 has 2 divisors, whose sum is σ = 148085010. Its totient is φ = 148085008.

The previous prime is 148084997. The next prime is 148085027. The reversal of 148085009 is 900580841.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101203600 + 46881409 = 10060^2 + 6847^2 .

It is a cyclic number.

It is not a de Polignac number, because 148085009 - 2⁸ = 148084753 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 148085009.

It is not a weakly prime, because it can be changed into another prime (148085029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74042504 + 74042505.

It is an arithmetic number, because the mean of its divisors is an integer number (74042505).

Almost surely, 2^148085009 is an apocalyptic number.

It is an amenable number.

148085009 is a deficient number, since it is larger than the sum of its proper divisors (1).

148085009 is an equidigital number, since it uses as much as digits as its factorization.

148085009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 148085009 is about 12169.0184074148. The cubic root of 148085009 is about 529.0585029453.

The spelling of 148085009 in words is "one hundred forty-eight million, eighty-five thousand, nine".