12861010 has 16 divisors (see below), whose sum is σ = 24511896. Its totient is φ = 4841728.

The previous prime is 12860977. The next prime is 12861029. The reversal of 12861010 is 1016821.

It can be written as a sum of positive squares in 4 ways, for example, as 11826721 + 1034289 = 3439^2 + 1017^2 .

It is an unprimeable number.

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, 37657 + ... + 37996.

Almost surely, 2^12861010 is an apocalyptic number.

12861010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12861010 is a deficient number, since it is larger than the sum of its proper divisors (11650886).

12861010 is a wasteful number, since it uses less digits than its factorization.

12861010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75677.

The product of its (nonzero) digits is 96, while the sum is 19.

The square root of 12861010 is about 3586.2250347685. The cubic root of 12861010 is about 234.2924849676.

Adding to 12861010 its reverse (1016821), we get a palindrome (13877831).

The spelling of 12861010 in words is "twelve million, eight hundred sixty-one thousand, ten".