148479109 has 2 divisors, whose sum is σ = 148479110. Its totient is φ = 148479108.

The previous prime is 148479103. The next prime is 148479127. The reversal of 148479109 is 901974841.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 145130209 + 3348900 = 12047^2 + 1830^2 .

It is a cyclic number.

It is not a de Polignac number, because 148479109 - 2⁵ = 148479077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (148479103) 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, 74239554 + 74239555.

It is an arithmetic number, because the mean of its divisors is an integer number (74239555).

Almost surely, 2^148479109 is an apocalyptic number.

It is an amenable number.

148479109 is a deficient number, since it is larger than the sum of its proper divisors (1).

148479109 is an equidigital number, since it uses as much as digits as its factorization.

148479109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 43.

The square root of 148479109 is about 12185.2004086925. The cubic root of 148479109 is about 529.5274166404.

The spelling of 148479109 in words is "one hundred forty-eight million, four hundred seventy-nine thousand, one hundred nine".