2147875605 has 12 divisors (see below), whose sum is σ = 3722984460. Its totient is φ = 1145533632.

The previous prime is 2147875603. The next prime is 2147875649. The reversal of 2147875605 is 5065787412.

2147875605 is a `hidden beast` number, since 2 + 1 + 4 + 7 + 87 + 560 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1210413681 + 937461924 = 34791^2 + 30618^2 .

It is not a de Polignac number, because 2147875605 - 2¹ = 2147875603 is a prime.

It is a super-2 number, since 2×2147875605² = 9226739229108232050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 47730569 = 2147875605 / (2 + 1 + 4 + 7 + 8 + 7 + 5 + 6 + 0 + 5).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2147875603) 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 in 11 ways as a sum of consecutive naturals, for example, 23865240 + ... + 23865329.

It is an arithmetic number, because the mean of its divisors is an integer number (310248705).

Almost surely, 2^2147875605 is an apocalyptic number.

It is an amenable number.

2147875605 is a deficient number, since it is larger than the sum of its proper divisors (1575108855).

2147875605 is a wasteful number, since it uses less digits than its factorization.

2147875605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47730580 (or 47730577 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 45.

The square root of 2147875605 is about 46345.1788754774. The cubic root of 2147875605 is about 1290.2376432568.

The spelling of 2147875605 in words is "two billion, one hundred forty-seven million, eight hundred seventy-five thousand, six hundred five".