12813485 has 8 divisors (see below), whose sum is σ = 15403416. Its totient is φ = 10232640.

The previous prime is 12813413. The next prime is 12813487. The reversal of 12813485 is 58431821.

It can be written as a sum of positive squares in 4 ways, for example, as 1510441 + 11303044 = 1229^2 + 3362^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12813485 - 2¹⁶ = 12747949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12813487) 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 7 ways as a sum of consecutive naturals, for example, 1367 + ... + 5243.

It is an arithmetic number, because the mean of its divisors is an integer number (1925427).

Almost surely, 2^12813485 is an apocalyptic number.

It is an amenable number.

12813485 is a deficient number, since it is larger than the sum of its proper divisors (2589931).

12813485 is an equidigital number, since it uses as much as digits as its factorization.

12813485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4543.

The product of its digits is 7680, while the sum is 32.

The square root of 12813485 is about 3579.5928539430. The cubic root of 12813485 is about 234.0035368497.

The spelling of 12813485 in words is "twelve million, eight hundred thirteen thousand, four hundred eighty-five".