12407112 has 24 divisors (see below), whose sum is σ = 33602790. Its totient is φ = 4135680.

The previous prime is 12407111. The next prime is 12407113. The reversal of 12407112 is 21170421.

It is an interprime number because it is at equal distance from previous prime (12407111) and next prime (12407113).

It can be written as a sum of positive squares in only one way, i.e., 9400356 + 3006756 = 3066^2 + 1734^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (12407111) 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 5 ways as a sum of consecutive naturals, for example, 86089 + ... + 86232.

Almost surely, 2^12407112 is an apocalyptic number.

12407112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12407112 is an abundant number, since it is smaller than the sum of its proper divisors (21195678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12407112 is a wasteful number, since it uses less digits than its factorization.

12407112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172333 (or 172326 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 12407112 is about 3522.3730637171. The cubic root of 12407112 is about 231.5031479559.

Adding to 12407112 its reverse (21170421), we get a palindrome (33577533).

The spelling of 12407112 in words is "twelve million, four hundred seven thousand, one hundred twelve".