48021109 has 2 divisors, whose sum is σ = 48021110. Its totient is φ = 48021108.

The previous prime is 48021101. The next prime is 48021131. The reversal of 48021109 is 90112084.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25220484 + 22800625 = 5022^2 + 4775^2 .

It is a cyclic number.

It is not a de Polignac number, because 48021109 - 2³ = 48021101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (48021101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24010554 + 24010555.

It is an arithmetic number, because the mean of its divisors is an integer number (24010555).

Almost surely, 2^48021109 is an apocalyptic number.

It is an amenable number.

48021109 is a deficient number, since it is larger than the sum of its proper divisors (1).

48021109 is an equidigital number, since it uses as much as digits as its factorization.

48021109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 48021109 is about 6929.7264736785. The cubic root of 48021109 is about 363.4773852013.

The spelling of 48021109 in words is "forty-eight million, twenty-one thousand, one hundred nine".