12972055 has 8 divisors (see below), whose sum is σ = 15786144. Its totient is φ = 10231200.

The previous prime is 12972007. The next prime is 12972067. The reversal of 12972055 is 55027921.

12972055 = 133² + 134² + ... + 345².

12972055 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 sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12972055 - 2¹¹ = 12970007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17916 + ... + 18625.

It is an arithmetic number, because the mean of its divisors is an integer number (1973268).

Almost surely, 2^12972055 is an apocalyptic number.

12972055 is a deficient number, since it is larger than the sum of its proper divisors (2814089).

12972055 is an equidigital number, since it uses as much as digits as its factorization.

12972055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36617.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 12972055 is about 3601.6739163894. The cubic root of 12972055 is about 234.9648657298.

Adding to 12972055 its reverse (55027921), we get a palindrome (67999976).

The spelling of 12972055 in words is "twelve million, nine hundred seventy-two thousand, fifty-five".