48198121 has 2 divisors, whose sum is σ = 48198122. Its totient is φ = 48198120.

The previous prime is 48198119. The next prime is 48198127. The reversal of 48198121 is 12189184.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48149721 + 48400 = 6939^2 + 220^2 .

It is a cyclic number.

It is not a de Polignac number, because 48198121 - 2¹ = 48198119 is a prime.

Together with 48198119, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (48198127) 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, 24099060 + 24099061.

It is an arithmetic number, because the mean of its divisors is an integer number (24099061).

Almost surely, 2^48198121 is an apocalyptic number.

It is an amenable number.

48198121 is a deficient number, since it is larger than the sum of its proper divisors (1).

48198121 is an equidigital number, since it uses as much as digits as its factorization.

48198121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4608, while the sum is 34.

The square root of 48198121 is about 6942.4866582515. The cubic root of 48198121 is about 363.9234457411.

The spelling of 48198121 in words is "forty-eight million, one hundred ninety-eight thousand, one hundred twenty-one".