12745897 has 8 divisors (see below), whose sum is σ = 13014792. Its totient is φ = 12480000.

The previous prime is 12745891. The next prime is 12745919. The reversal of 12745897 is 79854721.

12745897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1022121 + 11723776 = 1011^2 + 3424^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12745897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12745891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9147 + ... + 10447.

It is an arithmetic number, because the mean of its divisors is an integer number (1626849).

Almost surely, 2^12745897 is an apocalyptic number.

It is an amenable number.

12745897 is a deficient number, since it is larger than the sum of its proper divisors (268895).

12745897 is a wasteful number, since it uses less digits than its factorization.

12745897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1499.

The product of its digits is 141120, while the sum is 43.

The square root of 12745897 is about 3570.1396331236. The cubic root of 12745897 is about 233.5913741674.

The spelling of 12745897 in words is "twelve million, seven hundred forty-five thousand, eight hundred ninety-seven".