12126510 has 80 divisors (see below), whose sum is σ = 35597232. Its totient is φ = 2937600.

The previous prime is 12126509. The next prime is 12126533. The reversal of 12126510 is 1562121.

12126510 is a `hidden beast` number, since 1 + 2 + 12 + 651 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 8230 + ... + 9590.

Almost surely, 2^12126510 is an apocalyptic number.

12126510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12126510, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17798616).

12126510 is an abundant number, since it is smaller than the sum of its proper divisors (23470722).

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

12126510 is a wasteful number, since it uses less digits than its factorization.

12126510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1391 (or 1382 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 12126510 is about 3482.3138859098. The cubic root of 12126510 is about 229.7445809820.

Adding to 12126510 its reverse (1562121), we get a palindrome (13688631).

The spelling of 12126510 in words is "twelve million, one hundred twenty-six thousand, five hundred ten".