148009105 has 4 divisors (see below), whose sum is σ = 177610932. Its totient is φ = 118407280.

The previous prime is 148009093. The next prime is 148009109. The reversal of 148009105 is 501900841.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28259856 + 119749249 = 5316^2 + 10943^2 .

It is not a de Polignac number, because 148009105 - 2²⁷ = 13791377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148009109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14800906 + ... + 14800915.

It is an arithmetic number, because the mean of its divisors is an integer number (44402733).

Almost surely, 2^148009105 is an apocalyptic number.

It is an amenable number.

148009105 is a deficient number, since it is larger than the sum of its proper divisors (29601827).

148009105 is an equidigital number, since it uses as much as digits as its factorization.

148009105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29601826.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 148009105 is about 12165.8992680360. The cubic root of 148009105 is about 528.9680942446.

Adding to 148009105 its reverse (501900841), we get a palindrome (649909946).

The spelling of 148009105 in words is "one hundred forty-eight million, nine thousand, one hundred five".