12972057 has 8 divisors (see below), whose sum is σ = 19766976. Its totient is φ = 7412592.

The previous prime is 12972007. The next prime is 12972067. The reversal of 12972057 is 75027921.

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

It is not a de Polignac number, because 12972057 - 2⁶ = 12971993 is a prime.

It is a super-2 number, since 2×12972057² = 336548525622498, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12972007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 308838 + ... + 308879.

It is an arithmetic number, because the mean of its divisors is an integer number (2470872).

Almost surely, 2^12972057 is an apocalyptic number.

It is an amenable number.

12972057 is a deficient number, since it is larger than the sum of its proper divisors (6794919).

12972057 is an equidigital number, since it uses as much as digits as its factorization.

12972057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617727.

The product of its (nonzero) digits is 8820, while the sum is 33.

The square root of 12972057 is about 3601.6741940381. The cubic root of 12972057 is about 234.9648778052.

Adding to 12972057 its reverse (75027921), we get a palindrome (87999978).

The spelling of 12972057 in words is "twelve million, nine hundred seventy-two thousand, fifty-seven".