12910001 has 12 divisors (see below), whose sum is σ = 14173236. Its totient is φ = 11689440.

The previous prime is 12909997. The next prime is 12910013. The reversal of 12910001 is 10001921.

It can be written as a sum of positive squares in 2 ways, for example, as 8065600 + 4844401 = 2840^2 + 2201^2 .

It is not a de Polignac number, because 12910001 - 2² = 12909997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12910031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65435 + ... + 65631.

It is an arithmetic number, because the mean of its divisors is an integer number (1181103).

Almost surely, 2^12910001 is an apocalyptic number.

It is an amenable number.

12910001 is a deficient number, since it is larger than the sum of its proper divisors (1263235).

12910001 is an equidigital number, since it uses as much as digits as its factorization.

12910001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352 (or 281 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 12910001 is about 3593.0489838019. The cubic root of 12910001 is about 234.5896021034.

Adding to 12910001 its reverse (10001921), we get a palindrome (22911922).

The spelling of 12910001 in words is "twelve million, nine hundred ten thousand, one".