48216121 has 2 divisors, whose sum is σ = 48216122. Its totient is φ = 48216120.

The previous prime is 48216107. The next prime is 48216127. The reversal of 48216121 is 12161284.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47334400 + 881721 = 6880^2 + 939^2 .

It is a cyclic number.

It is not a de Polignac number, because 48216121 - 2¹⁷ = 48085049 is a prime.

It is not a weakly prime, because it can be changed into another prime (48216127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24108060 + 24108061.

It is an arithmetic number, because the mean of its divisors is an integer number (24108061).

Almost surely, 2^48216121 is an apocalyptic number.

It is an amenable number.

48216121 is a deficient number, since it is larger than the sum of its proper divisors (1).

48216121 is an equidigital number, since it uses as much as digits as its factorization.

48216121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 768, while the sum is 25.

The square root of 48216121 is about 6943.7829027123. The cubic root of 48216121 is about 363.9687435424.

The spelling of 48216121 in words is "forty-eight million, two hundred sixteen thousand, one hundred twenty-one".