475161605 has 4 divisors (see below), whose sum is σ = 570193932. Its totient is φ = 380129280.

The previous prime is 475161601. The next prime is 475161613. The reversal of 475161605 is 506161574.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 86007076 + 389154529 = 9274^2 + 19727^2 .

It is not a de Polignac number, because 475161605 - 2² = 475161601 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (475161601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47516156 + ... + 47516165.

It is an arithmetic number, because the mean of its divisors is an integer number (142548483).

Almost surely, 2^475161605 is an apocalyptic number.

It is an amenable number.

475161605 is a deficient number, since it is larger than the sum of its proper divisors (95032327).

475161605 is an equidigital number, since it uses as much as digits as its factorization.

475161605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95032326.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 475161605 is about 21798.2018753841. The cubic root of 475161605 is about 780.3338506220. Note that the first 3 decimals are identical.

The spelling of 475161605 in words is "four hundred seventy-five million, one hundred sixty-one thousand, six hundred five".