12705037 has 4 divisors (see below), whose sum is σ = 12725440. Its totient is φ = 12684636.

The previous prime is 12705031. The next prime is 12705041. The reversal of 12705037 is 73050721.

12705037 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 a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12705037 - 2¹⁵ = 12672269 is a prime.

It is a super-2 number, since 2×12705037² = 322835930342738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12705031) 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, 9237 + ... + 10522.

It is an arithmetic number, because the mean of its divisors is an integer number (3181360).

Almost surely, 2^12705037 is an apocalyptic number.

It is an amenable number.

12705037 is a deficient number, since it is larger than the sum of its proper divisors (20403).

12705037 is an equidigital number, since it uses as much as digits as its factorization.

12705037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20402.

The product of its (nonzero) digits is 1470, while the sum is 25.

The square root of 12705037 is about 3564.4125743241. The cubic root of 12705037 is about 233.3414960863.

Adding to 12705037 its reverse (73050721), we get a palindrome (85755758).

The spelling of 12705037 in words is "twelve million, seven hundred five thousand, thirty-seven".