12520707 has 4 divisors (see below), whose sum is σ = 16694280. Its totient is φ = 8347136.

The previous prime is 12520699. The next prime is 12520709. The reversal of 12520707 is 70702521.

12520707 is digitally balanced in base 2 and base 3, because in such bases 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: 70702521 = 3 ⋅23567507.

It is a cyclic number.

It is not a de Polignac number, because 12520707 - 2³ = 12520699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12520709) 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, 2086782 + ... + 2086787.

It is an arithmetic number, because the mean of its divisors is an integer number (4173570).

Almost surely, 2^12520707 is an apocalyptic number.

12520707 is a deficient number, since it is larger than the sum of its proper divisors (4173573).

12520707 is an equidigital number, since it uses as much as digits as its factorization.

12520707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4173572.

The product of its (nonzero) digits is 980, while the sum is 24.

The square root of 12520707 is about 3538.4611061873. The cubic root of 12520707 is about 232.2075221556.

The spelling of 12520707 in words is "twelve million, five hundred twenty thousand, seven hundred seven".