12742516 has 6 divisors (see below), whose sum is σ = 22299410. Its totient is φ = 6371256.

The previous prime is 12742511. The next prime is 12742553. The reversal of 12742516 is 61524721.

It can be written as a sum of positive squares in only one way, i.e., 10214416 + 2528100 = 3196^2 + 1590^2 .

It is a super-3 number, since 3×12742516³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12742511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1592811 + ... + 1592818.

Almost surely, 2^12742516 is an apocalyptic number.

It is an amenable number.

12742516 is a deficient number, since it is larger than the sum of its proper divisors (9556894).

12742516 is a wasteful number, since it uses less digits than its factorization.

12742516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3185633 (or 3185631 counting only the distinct ones).

The product of its digits is 3360, while the sum is 28.

The square root of 12742516 is about 3569.6660908270. Note that the first 3 decimals coincide. The cubic root of 12742516 is about 233.5707180488.

The spelling of 12742516 in words is "twelve million, seven hundred forty-two thousand, five hundred sixteen".