3138530585 has 4 divisors (see below), whose sum is σ = 3766236708. Its totient is φ = 2510824464.

The previous prime is 3138530567. The next prime is 3138530611. The reversal of 3138530585 is 5850358313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5850358313 = 317 ⋅18455389.

It can be written as a sum of positive squares in 2 ways, for example, as 1584278809 + 1554251776 = 39803^2 + 39424^2 .

It is a cyclic number.

It is not a de Polignac number, because 3138530585 - 2¹⁴ = 3138514201 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313853054 + ... + 313853063.

It is an arithmetic number, because the mean of its divisors is an integer number (941559177).

Almost surely, 2^3138530585 is an apocalyptic number.

It is an amenable number.

3138530585 is a deficient number, since it is larger than the sum of its proper divisors (627706123).

3138530585 is an equidigital number, since it uses as much as digits as its factorization.

3138530585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627706122.

The product of its (nonzero) digits is 216000, while the sum is 41.

The square root of 3138530585 is about 56022.5899526254. The cubic root of 3138530585 is about 1464.1158934663.

Adding to 3138530585 its reverse (5850358313), we get a palindrome (8988888898).

The spelling of 3138530585 in words is "three billion, one hundred thirty-eight million, five hundred thirty thousand, five hundred eighty-five".