12739546 has 4 divisors (see below), whose sum is σ = 19109322. Its totient is φ = 6369772.

The previous prime is 12739537. The next prime is 12739577. The reversal of 12739546 is 64593721.

12739546 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64593721 = 307 ⋅210403.

It can be written as a sum of positive squares in only one way, i.e., 10144225 + 2595321 = 3185^2 + 1611^2 .

It is a super-3 number, since 3×12739546³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3184885 + ... + 3184888.

Almost surely, 2^12739546 is an apocalyptic number.

12739546 is a deficient number, since it is larger than the sum of its proper divisors (6369776).

12739546 is an equidigital number, since it uses as much as digits as its factorization.

12739546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6369775.

The product of its digits is 45360, while the sum is 37.

The square root of 12739546 is about 3569.2500612874. The cubic root of 12739546 is about 233.5525699077.

The spelling of 12739546 in words is "twelve million, seven hundred thirty-nine thousand, five hundred forty-six".