12739146 has 16 divisors (see below), whose sum is σ = 29118144. Its totient is φ = 3639744.

The previous prime is 12739141. The next prime is 12739159. The reversal of 12739146 is 64193721.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12739141) 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, 151615 + ... + 151698.

It is an arithmetic number, because the mean of its divisors is an integer number (1819884).

Almost surely, 2^12739146 is an apocalyptic number.

12739146 is an abundant number, since it is smaller than the sum of its proper divisors (16378998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12739146 is a wasteful number, since it uses less digits than its factorization.

12739146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303325.

The product of its digits is 9072, while the sum is 33.

The square root of 12739146 is about 3569.1940266676. The cubic root of 12739146 is about 233.5501254981.

The spelling of 12739146 in words is "twelve million, seven hundred thirty-nine thousand, one hundred forty-six".