12540106 has 16 divisors (see below), whose sum is σ = 19787328. Its totient is φ = 5948800.

The previous prime is 12540049. The next prime is 12540109. The reversal of 12540106 is 60104521.

It is not an unprimeable number, because it can be changed into a prime (12540109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4986 + ... + 7066.

It is an arithmetic number, because the mean of its divisors is an integer number (1236708).

Almost surely, 2^12540106 is an apocalyptic number.

12540106 is a deficient number, since it is larger than the sum of its proper divisors (7247222).

12540106 is a wasteful number, since it uses less digits than its factorization.

12540106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2237.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 12540106 is about 3541.2012086296. The cubic root of 12540106 is about 232.3273841123.

Adding to 12540106 its reverse (60104521), we get a palindrome (72644627).

The spelling of 12540106 in words is "twelve million, five hundred forty thousand, one hundred six".