12739042 has 8 divisors (see below), whose sum is σ = 19191276. Its totient is φ = 6341952.

The previous prime is 12739037. The next prime is 12739043. The reversal of 12739042 is 24093721.

It can be written as a sum of positive squares in 2 ways, for example, as 12595401 + 143641 = 3549^2 + 379^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 12739042.

It is not an unprimeable number, because it can be changed into a prime (12739043) 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, 13203 + ... + 14134.

Almost surely, 2^12739042 is an apocalyptic number.

12739042 is a deficient number, since it is larger than the sum of its proper divisors (6452234).

12739042 is a wasteful number, since it uses less digits than its factorization.

12739042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27572.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 12739042 is about 3569.1794575224. The cubic root of 12739042 is about 233.5494899433.

The spelling of 12739042 in words is "twelve million, seven hundred thirty-nine thousand, forty-two".