12972115 has 16 divisors (see below), whose sum is σ = 17494848. Its totient is φ = 9161856.

The previous prime is 12972107. The next prime is 12972131. The reversal of 12972115 is 51127921.

12972115 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12972115 - 2³ = 12972107 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2844 + ... + 5833.

It is an arithmetic number, because the mean of its divisors is an integer number (1093428).

Almost surely, 2^12972115 is an apocalyptic number.

12972115 is a deficient number, since it is larger than the sum of its proper divisors (4522733).

12972115 is a wasteful number, since it uses less digits than its factorization.

12972115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8718.

The product of its digits is 1260, while the sum is 28.

The square root of 12972115 is about 3601.6822458401. The cubic root of 12972115 is about 234.9652279923.

The spelling of 12972115 in words is "twelve million, nine hundred seventy-two thousand, one hundred fifteen".