48402121 has 2 divisors, whose sum is σ = 48402122. Its totient is φ = 48402120.

The previous prime is 48402119. The next prime is 48402157. The reversal of 48402121 is 12120484.

48402121 = T₅₆₇₉ + T₅₆₈₀ + T₅₆₈₁.

48402121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32490000 + 15912121 = 5700^2 + 3989^2 .

It is a cyclic number.

It is not a de Polignac number, because 48402121 - 2¹ = 48402119 is a prime.

Together with 48402119, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 48402092 and 48402101.

It is not a weakly prime, because it can be changed into another prime (48402521) 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, 24201060 + 24201061.

It is an arithmetic number, because the mean of its divisors is an integer number (24201061).

Almost surely, 2^48402121 is an apocalyptic number.

48402121 is the 5681-st centered triangular number.

It is an amenable number.

48402121 is a deficient number, since it is larger than the sum of its proper divisors (1).

48402121 is an equidigital number, since it uses as much as digits as its factorization.

48402121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 48402121 is about 6957.1632868577. The cubic root of 48402121 is about 364.4361620423.

The spelling of 48402121 in words is "forty-eight million, four hundred two thousand, one hundred twenty-one".