12739365 has 12 divisors (see below), whose sum is σ = 22081644. Its totient is φ = 6794304.

The previous prime is 12739343. The next prime is 12739373. The reversal of 12739365 is 56393721.

It can be written as a sum of positive squares in 2 ways, for example, as 5022081 + 7717284 = 2241^2 + 2778^2 .

It is not a de Polignac number, because 12739365 - 2⁹ = 12738853 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 141504 + ... + 141593.

It is an arithmetic number, because the mean of its divisors is an integer number (1840137).

Almost surely, 2^12739365 is an apocalyptic number.

12739365 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12739365 is a deficient number, since it is larger than the sum of its proper divisors (9342279).

12739365 is a wasteful number, since it uses less digits than its factorization.

12739365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283108 (or 283105 counting only the distinct ones).

The product of its digits is 34020, while the sum is 36.

The square root of 12739365 is about 3569.2247057309. The cubic root of 12739365 is about 233.5514638187.

The spelling of 12739365 in words is "twelve million, seven hundred thirty-nine thousand, three hundred sixty-five".