47481121 has 2 divisors, whose sum is σ = 47481122. Its totient is φ = 47481120.

The previous prime is 47481107. The next prime is 47481167. The reversal of 47481121 is 12118474.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33872400 + 13608721 = 5820^2 + 3689^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47481121 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47481121.

It is not a weakly prime, because it can be changed into another prime (47431121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23740560 + 23740561.

It is an arithmetic number, because the mean of its divisors is an integer number (23740561).

Almost surely, 2^47481121 is an apocalyptic number.

It is an amenable number.

47481121 is a deficient number, since it is larger than the sum of its proper divisors (1).

47481121 is an equidigital number, since it uses as much as digits as its factorization.

47481121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1792, while the sum is 28.

The square root of 47481121 is about 6890.6546133151. The cubic root of 47481121 is about 362.1098356209.

Adding to 47481121 its reverse (12118474), we get a palindrome (59599595).

The spelling of 47481121 in words is "forty-seven million, four hundred eighty-one thousand, one hundred twenty-one".