12760138 has 16 divisors (see below), whose sum is σ = 19492200. Its totient is φ = 6264000.

The previous prime is 12760133. The next prime is 12760151. The reversal of 12760138 is 83106721.

It can be written as a sum of positive squares in 4 ways, for example, as 11512449 + 1247689 = 3393^2 + 1117^2 .

It is a super-2 number, since 2×12760138² = 325642243558088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12760133) 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, 36388 + ... + 36736.

Almost surely, 2^12760138 is an apocalyptic number.

12760138 is a deficient number, since it is larger than the sum of its proper divisors (6732062).

12760138 is a wasteful number, since it uses less digits than its factorization.

12760138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 12760138 is about 3572.1335361378. The cubic root of 12760138 is about 233.6783390576.

Adding to 12760138 its reverse (83106721), we get a palindrome (95866859).

The spelling of 12760138 in words is "twelve million, seven hundred sixty thousand, one hundred thirty-eight".