12540502 has 16 divisors (see below), whose sum is σ = 20592432. Its totient is φ = 5692320.

The previous prime is 12540491. The next prime is 12540503. The reversal of 12540502 is 20504521.

It is a self number, because there is not a number n which added to its sum of digits gives 12540502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12540503) 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, 2368 + ... + 5539.

It is an arithmetic number, because the mean of its divisors is an integer number (1287027).

Almost surely, 2^12540502 is an apocalyptic number.

12540502 is a deficient number, since it is larger than the sum of its proper divisors (8051930).

12540502 is a wasteful number, since it uses less digits than its factorization.

12540502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7983.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 12540502 is about 3541.2571214189. The cubic root of 12540502 is about 232.3298296173.

The spelling of 12540502 in words is "twelve million, five hundred forty thousand, five hundred two".