48931121 has 2 divisors, whose sum is σ = 48931122. Its totient is φ = 48931120.

The previous prime is 48931093. The next prime is 48931123. The reversal of 48931121 is 12113984.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38440000 + 10491121 = 6200^2 + 3239^2 .

It is a cyclic number.

It is not a de Polignac number, because 48931121 - 2¹⁴ = 48914737 is a prime.

It is a Sophie Germain prime.

Together with 48931123, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (48931123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24465560 + 24465561.

It is an arithmetic number, because the mean of its divisors is an integer number (24465561).

Almost surely, 2^48931121 is an apocalyptic number.

It is an amenable number.

48931121 is a deficient number, since it is larger than the sum of its proper divisors (1).

48931121 is an equidigital number, since it uses as much as digits as its factorization.

48931121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 29.

The square root of 48931121 is about 6995.0783412339. The cubic root of 48931121 is about 365.7590284773.

The spelling of 48931121 in words is "forty-eight million, nine hundred thirty-one thousand, one hundred twenty-one".