12870001 has 2 divisors, whose sum is σ = 12870002. Its totient is φ = 12870000.

The previous prime is 12869993. The next prime is 12870007. The reversal of 12870001 is 10007821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8708401 + 4161600 = 2951^2 + 2040^2 .

It is a cyclic number.

It is not a de Polignac number, because 12870001 - 2³ = 12869993 is a prime.

It is not a weakly prime, because it can be changed into another prime (12870007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6435000 + 6435001.

It is an arithmetic number, because the mean of its divisors is an integer number (6435001).

Almost surely, 2^12870001 is an apocalyptic number.

It is an amenable number.

12870001 is a deficient number, since it is larger than the sum of its proper divisors (1).

12870001 is an equidigital number, since it uses as much as digits as its factorization.

12870001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 19.

The square root of 12870001 is about 3587.4783623041. The cubic root of 12870001 is about 234.3470694064.

Adding to 12870001 its reverse (10007821), we get a palindrome (22877822).

The spelling of 12870001 in words is "twelve million, eight hundred seventy thousand, one".