12124782 has 32 divisors (see below), whose sum is σ = 27816960. Its totient is φ = 3910680.

The previous prime is 12124781. The next prime is 12124829. The reversal of 12124782 is 28742121.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12124781) 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 15 ways as a sum of consecutive naturals, for example, 1948 + ... + 5295.

It is an arithmetic number, because the mean of its divisors is an integer number (869280).

Almost surely, 2^12124782 is an apocalyptic number.

12124782 is an abundant number, since it is smaller than the sum of its proper divisors (15692178).

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

12124782 is a wasteful number, since it uses less digits than its factorization.

12124782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7285 (or 7279 counting only the distinct ones).

The product of its digits is 1792, while the sum is 27.

The square root of 12124782 is about 3482.0657661796. The cubic root of 12124782 is about 229.7336677708.

The spelling of 12124782 in words is "twelve million, one hundred twenty-four thousand, seven hundred eighty-two".