12510001 has 4 divisors (see below), whose sum is σ = 14297152. Its totient is φ = 10722852.

The previous prime is 12509983. The next prime is 12510023. The reversal of 12510001 is 10001521.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 12510001 - 2¹¹ = 12507953 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12510001.

It is not an unprimeable number, because it can be changed into a prime (12510101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 893565 + ... + 893578.

It is an arithmetic number, because the mean of its divisors is an integer number (3574288).

Almost surely, 2^12510001 is an apocalyptic number.

It is an amenable number.

12510001 is a deficient number, since it is larger than the sum of its proper divisors (1787151).

12510001 is an equidigital number, since it uses as much as digits as its factorization.

12510001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1787150.

The product of its (nonzero) digits is 10, while the sum is 10.

The square root of 12510001 is about 3536.9479781303. The cubic root of 12510001 is about 232.1413192211.

Adding to 12510001 its reverse (10001521), we get a palindrome (22511522).

The spelling of 12510001 in words is "twelve million, five hundred ten thousand, one".