474672161 has 2 divisors, whose sum is σ = 474672162. Its totient is φ = 474672160.

The previous prime is 474672157. The next prime is 474672173. The reversal of 474672161 is 161276474.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 293608225 + 181063936 = 17135^2 + 13456^2 .

It is a cyclic number.

It is not a de Polignac number, because 474672161 - 2² = 474672157 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (474672151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 237336080 + 237336081.

It is an arithmetic number, because the mean of its divisors is an integer number (237336081).

Almost surely, 2^474672161 is an apocalyptic number.

It is an amenable number.

474672161 is a deficient number, since it is larger than the sum of its proper divisors (1).

474672161 is an equidigital number, since it uses as much as digits as its factorization.

474672161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56448, while the sum is 38.

The square root of 474672161 is about 21786.9722770283. The cubic root of 474672161 is about 780.0658288733.

The spelling of 474672161 in words is "four hundred seventy-four million, six hundred seventy-two thousand, one hundred sixty-one".