12720573 has 24 divisors (see below), whose sum is σ = 19745856. Its totient is φ = 7862400.

The previous prime is 12720569. The next prime is 12720581. The reversal of 12720573 is 37502721.

12720573 is digitally balanced in base 2, base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12720573 - 2² = 12720569 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12720593) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10278 + ... + 11448.

It is an arithmetic number, because the mean of its divisors is an integer number (822744).

Almost surely, 2^12720573 is an apocalyptic number.

It is an amenable number.

12720573 is a deficient number, since it is larger than the sum of its proper divisors (7025283).

12720573 is a wasteful number, since it uses less digits than its factorization.

12720573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1265 (or 1262 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 12720573 is about 3566.5912297318. The cubic root of 12720573 is about 233.4365690570.

The spelling of 12720573 in words is "twelve million, seven hundred twenty thousand, five hundred seventy-three".