12444861 has 16 divisors (see below), whose sum is σ = 19494720. Its totient is φ = 6961920.

The previous prime is 12444851. The next prime is 12444871. The reversal of 12444861 is 16844421.

12444861 = 104² + 105² + ... + 337².

12444861 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12444851) and next prime (12444871).

It is not a de Polignac number, because 12444861 - 2¹¹ = 12442813 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12444841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14076 + ... + 14933.

It is an arithmetic number, because the mean of its divisors is an integer number (1218420).

Almost surely, 2^12444861 is an apocalyptic number.

12444861 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12444861 is a deficient number, since it is larger than the sum of its proper divisors (7049859).

12444861 is a wasteful number, since it uses less digits than its factorization.

12444861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29036.

The product of its digits is 6144, while the sum is 30.

The square root of 12444861 is about 3527.7274554591. The cubic root of 12444861 is about 231.7376952699.

It can be divided in two parts, 1244 and 4861, that added together give a triangular number (6105 = T₁₁₀).

The spelling of 12444861 in words is "twelve million, four hundred forty-four thousand, eight hundred sixty-one".