12861542 has 8 divisors (see below), whose sum is σ = 19483632. Its totient is φ = 6367000.

The previous prime is 12861517. The next prime is 12861553. The reversal of 12861542 is 24516821.

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

It is a congruent 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, 31634 + ... + 32037.

It is an arithmetic number, because the mean of its divisors is an integer number (2435454).

Almost surely, 2^12861542 is an apocalyptic number.

12861542 is a deficient number, since it is larger than the sum of its proper divisors (6622090).

12861542 is a wasteful number, since it uses less digits than its factorization.

12861542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63774.

The product of its digits is 3840, while the sum is 29.

The square root of 12861542 is about 3586.2992067032. The cubic root of 12861542 is about 234.2957154522.

The spelling of 12861542 in words is "twelve million, eight hundred sixty-one thousand, five hundred forty-two".