12540248 has 32 divisors (see below), whose sum is σ = 27068160. Its totient is φ = 5335200.

The previous prime is 12540217. The next prime is 12540259. The reversal of 12540248 is 84204521.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7715 + ... + 9197.

It is an arithmetic number, because the mean of its divisors is an integer number (845880).

Almost surely, 2^12540248 is an apocalyptic number.

It is an amenable number.

12540248 is an abundant number, since it is smaller than the sum of its proper divisors (14527912).

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

12540248 is a wasteful number, since it uses less digits than its factorization.

12540248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1647 (or 1643 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 12540248 is about 3541.2212582667. The cubic root of 12540248 is about 232.3282610417.

Adding to 12540248 its reverse (84204521), we get a palindrome (96744769).

The spelling of 12540248 in words is "twelve million, five hundred forty thousand, two hundred forty-eight".