12767138 has 8 divisors (see below), whose sum is σ = 19268688. Its totient is φ = 6344244.

The previous prime is 12767137. The next prime is 12767177. The reversal of 12767138 is 83176721.

12767138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×12767138² = 325999625422088, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12767098 and 12767107.

It is not an unprimeable number, because it can be changed into a prime (12767137) 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, 19256 + ... + 19907.

It is an arithmetic number, because the mean of its divisors is an integer number (2408586).

Almost surely, 2^12767138 is an apocalyptic number.

12767138 is a deficient number, since it is larger than the sum of its proper divisors (6501550).

12767138 is a wasteful number, since it uses less digits than its factorization.

12767138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39328.

The product of its digits is 14112, while the sum is 35.

The square root of 12767138 is about 3573.1132083940. The cubic root of 12767138 is about 233.7210619328.

It can be divided in two parts, 1276713 and 8, that added together give a palindrome (1276721).

The spelling of 12767138 in words is "twelve million, seven hundred sixty-seven thousand, one hundred thirty-eight".