12861502 has 4 divisors (see below), whose sum is σ = 19292256. Its totient is φ = 6430750.

The previous prime is 12861493. The next prime is 12861517. The reversal of 12861502 is 20516821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20516821 = 13 ⋅1578217.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3215374 + ... + 3215377.

It is an arithmetic number, because the mean of its divisors is an integer number (4823064).

Almost surely, 2^12861502 is an apocalyptic number.

12861502 is a deficient number, since it is larger than the sum of its proper divisors (6430754).

12861502 is an equidigital number, since it uses as much as digits as its factorization.

12861502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6430753.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 12861502 is about 3586.2936299193. The cubic root of 12861502 is about 234.2954725617.

The spelling of 12861502 in words is "twelve million, eight hundred sixty-one thousand, five hundred two".