12540711 has 8 divisors (see below), whose sum is σ = 17128944. Its totient is φ = 8156480.

The previous prime is 12540691. The next prime is 12540733. The reversal of 12540711 is 11704521.

It is a happy number.

12540711 is an esthetic number in base 3, because in such base its adjacent digits differ by 1.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12540711 - 2¹⁹ = 12016423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12540751) 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, 50856 + ... + 51101.

It is an arithmetic number, because the mean of its divisors is an integer number (2141118).

Almost surely, 2^12540711 is an apocalyptic number.

12540711 is a deficient number, since it is larger than the sum of its proper divisors (4588233).

12540711 is a wasteful number, since it uses less digits than its factorization.

12540711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102001.

The product of its (nonzero) digits is 280, while the sum is 21.

The square root of 12540711 is about 3541.2866305906. The cubic root of 12540711 is about 232.3311202797.

The spelling of 12540711 in words is "twelve million, five hundred forty thousand, seven hundred eleven".