12540126 has 8 divisors (see below), whose sum is σ = 25080264. Its totient is φ = 4180040.

The previous prime is 12540119. The next prime is 12540127. The reversal of 12540126 is 62104521.

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

12540126 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12540127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1045005 + ... + 1045016.

It is an arithmetic number, because the mean of its divisors is an integer number (3135033).

Almost surely, 2^12540126 is an apocalyptic number.

12540126 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12540126 is a wasteful number, since it uses less digits than its factorization.

12540126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2090026.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 12540126 is about 3541.2040325290. The cubic root of 12540126 is about 232.3275076239.

Adding to 12540126 its reverse (62104521), we get a palindrome (74644647).

The spelling of 12540126 in words is "twelve million, five hundred forty thousand, one hundred twenty-six".