47730161 has 2 divisors, whose sum is σ = 47730162. Its totient is φ = 47730160.

The previous prime is 47730139. The next prime is 47730167. The reversal of 47730161 is 16103774.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42823936 + 4906225 = 6544^2 + 2215^2 .

It is a cyclic number.

It is not a de Polignac number, because 47730161 - 2¹⁴ = 47713777 is a prime.

It is not a weakly prime, because it can be changed into another prime (47730167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23865080 + 23865081.

It is an arithmetic number, because the mean of its divisors is an integer number (23865081).

Almost surely, 2^47730161 is an apocalyptic number.

It is an amenable number.

47730161 is a deficient number, since it is larger than the sum of its proper divisors (1).

47730161 is an equidigital number, since it uses as much as digits as its factorization.

47730161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 47730161 is about 6908.7018317481. The cubic root of 47730161 is about 362.7418245323.

The spelling of 47730161 in words is "forty-seven million, seven hundred thirty thousand, one hundred sixty-one".