204467161 has 2 divisors, whose sum is σ = 204467162. Its totient is φ = 204467160.

The previous prime is 204467147. The next prime is 204467201. The reversal of 204467161 is 161764402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 136305625 + 68161536 = 11675^2 + 8256^2 .

It is a cyclic number.

It is not a de Polignac number, because 204467161 - 2¹¹ = 204465113 is a prime.

It is not a weakly prime, because it can be changed into another prime (204467101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102233580 + 102233581.

It is an arithmetic number, because the mean of its divisors is an integer number (102233581).

Almost surely, 2^204467161 is an apocalyptic number.

It is an amenable number.

204467161 is a deficient number, since it is larger than the sum of its proper divisors (1).

204467161 is an equidigital number, since it uses as much as digits as its factorization.

204467161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 204467161 is about 14299.2014112677. The cubic root of 204467161 is about 589.1255464949.

The spelling of 204467161 in words is "two hundred four million, four hundred sixty-seven thousand, one hundred sixty-one".