475739161 has 2 divisors, whose sum is σ = 475739162. Its totient is φ = 475739160.

The previous prime is 475739141. The next prime is 475739177. The reversal of 475739161 is 161937574.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 374616025 + 101123136 = 19355^2 + 10056^2 .

It is a cyclic number.

It is not a de Polignac number, because 475739161 - 2¹¹ = 475737113 is a prime.

It is not a weakly prime, because it can be changed into another prime (475739141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 237869580 + 237869581.

It is an arithmetic number, because the mean of its divisors is an integer number (237869581).

Almost surely, 2^475739161 is an apocalyptic number.

It is an amenable number.

475739161 is a deficient number, since it is larger than the sum of its proper divisors (1).

475739161 is an equidigital number, since it uses as much as digits as its factorization.

475739161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 158760, while the sum is 43.

The square root of 475739161 is about 21811.4456421394. The cubic root of 475739161 is about 780.6498862708.

The spelling of 475739161 in words is "four hundred seventy-five million, seven hundred thirty-nine thousand, one hundred sixty-one".