12538711 has 4 divisors (see below), whose sum is σ = 12550000. Its totient is φ = 12527424.

The previous prime is 12538679. The next prime is 12538723. The reversal of 12538711 is 11783521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12538711 - 2⁵ = 12538679 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 12538711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12538111) 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, 3771 + ... + 6268.

It is an arithmetic number, because the mean of its divisors is an integer number (3137500).

Almost surely, 2^12538711 is an apocalyptic number.

12538711 is a deficient number, since it is larger than the sum of its proper divisors (11289).

12538711 is a wasteful number, since it uses less digits than its factorization.

12538711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11288.

The product of its digits is 1680, while the sum is 28.

The square root of 12538711 is about 3541.0042360890. The cubic root of 12538711 is about 232.3187688550.

The spelling of 12538711 in words is "twelve million, five hundred thirty-eight thousand, seven hundred eleven".