12915973 has 4 divisors (see below), whose sum is σ = 14761120. Its totient is φ = 11070828.

The previous prime is 12915907. The next prime is 12915977. The reversal of 12915973 is 37951921.

12915973 is digitally balanced in base 3, 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 12915973 - 2¹³ = 12907781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12915977) 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, 922563 + ... + 922576.

It is an arithmetic number, because the mean of its divisors is an integer number (3690280).

Almost surely, 2^12915973 is an apocalyptic number.

It is an amenable number.

12915973 is a deficient number, since it is larger than the sum of its proper divisors (1845147).

12915973 is an equidigital number, since it uses as much as digits as its factorization.

12915973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1845146.

The product of its digits is 17010, while the sum is 37.

The square root of 12915973 is about 3593.8799367814. The cubic root of 12915973 is about 234.6257692356.

The spelling of 12915973 in words is "twelve million, nine hundred fifteen thousand, nine hundred seventy-three".