12508743 has 16 divisors (see below), whose sum is σ = 18381440. Its totient is φ = 7517664.

The previous prime is 12508733. The next prime is 12508747. The reversal of 12508743 is 34780521.

It is not a de Polignac number, because 12508743 - 2⁶ = 12508679 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12508743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12508747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2053 + ... + 5406.

It is an arithmetic number, because the mean of its divisors is an integer number (1148840).

Almost surely, 2^12508743 is an apocalyptic number.

12508743 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12508743 is a deficient number, since it is larger than the sum of its proper divisors (5872697).

12508743 is a wasteful number, since it uses less digits than its factorization.

12508743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7518.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 12508743 is about 3536.7701367208. The cubic root of 12508743 is about 232.1335376185.

The spelling of 12508743 in words is "twelve million, five hundred eight thousand, seven hundred forty-three".