12916071 has 32 divisors (see below), whose sum is σ = 22471680. Its totient is φ = 7177248.

The previous prime is 12916069. The next prime is 12916093. The reversal of 12916071 is 17061921.

12916071 = 954² + 955² + ... + 967².

12916071 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12916071 - 2¹ = 12916069 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12916051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6070 + ... + 7916.

It is an arithmetic number, because the mean of its divisors is an integer number (702240).

Almost surely, 2^12916071 is an apocalyptic number.

12916071 is a deficient number, since it is larger than the sum of its proper divisors (9555609).

12916071 is a wasteful number, since it uses less digits than its factorization.

12916071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1900 (or 1894 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 27.

The square root of 12916071 is about 3593.8935710452. The cubic root of 12916071 is about 234.6263626421.

Adding to 12916071 its reverse (17061921), we get a palindrome (29977992).

The spelling of 12916071 in words is "twelve million, nine hundred sixteen thousand, seventy-one".