Search a number
BaseRepresentation
bin1011100000111001
32101200201
423200321
53002121
61002201
7254332
oct134071
971621
1047161
1132484
1223361
131860a
1413289
15de91
hexb839

47161 has 2 divisors, whose sum is σ = 47162. Its totient is φ = 47160.

The previous prime is 47149. The next prime is 47189. The reversal of 47161 is 16174.

It is a happy number.

47161 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., 32761 + 14400 = 181^2 + 120^2 .

It is a cyclic number.

It is not a de Polignac number, because 47161 - 25 = 47129 is a prime.

It is not a weakly prime, because it can be changed into another prime (47111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23580 + 23581.

It is an arithmetic number, because the mean of its divisors is an integer number (23581).

247161 is an apocalyptic number.

It is an amenable number.

47161 is a deficient number, since it is larger than the sum of its proper divisors (1).

47161 is an equidigital number, since it uses as much as digits as its factorization.

47161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 168, while the sum is 19.

The square root of 47161 is about 217.1658352504. The cubic root of 47161 is about 36.1294210016.

The spelling of 47161 in words is "forty-seven thousand, one hundred sixty-one".