12612401 has 4 divisors (see below), whose sum is σ = 12630900. Its totient is φ = 12593904.

The previous prime is 12612367. The next prime is 12612407. The reversal of 12612401 is 10421621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10421621 = 7 ⋅1488803.

It can be written as a sum of positive squares in 2 ways, for example, as 7706176 + 4906225 = 2776^2 + 2215^2 .

It is a cyclic number.

It is not a de Polignac number, because 12612401 - 2¹⁰ = 12611377 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 12612401.

It is not an unprimeable number, because it can be changed into a prime (12612407) 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, 8186 + ... + 9603.

It is an arithmetic number, because the mean of its divisors is an integer number (3157725).

Almost surely, 2^12612401 is an apocalyptic number.

It is an amenable number.

12612401 is a deficient number, since it is larger than the sum of its proper divisors (18499).

12612401 is an equidigital number, since it uses as much as digits as its factorization.

12612401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18498.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 12612401 is about 3551.3942332554. The cubic root of 12612401 is about 232.7729926295.

The spelling of 12612401 in words is "twelve million, six hundred twelve thousand, four hundred one".