12605401 has 8 divisors (see below), whose sum is σ = 13079880. Its totient is φ = 12133632.

The previous prime is 12605393. The next prime is 12605413. The reversal of 12605401 is 10450621.

12605401 is digitally balanced in base 2 and base 3, because in such bases 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 6255001 + 6350400 = 2501^2 + 2520^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 12605401 - 2³ = 12605393 is a prime.

It is a super-2 number, since 2×12605401² = 317792268741602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12615401) 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, 16831 + ... + 17563.

It is an arithmetic number, because the mean of its divisors is an integer number (1634985).

Almost surely, 2^12605401 is an apocalyptic number.

It is an amenable number.

12605401 is a deficient number, since it is larger than the sum of its proper divisors (474479).

12605401 is an equidigital number, since it uses as much as digits as its factorization.

12605401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1355.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 12605401 is about 3550.4085680383. The cubic root of 12605401 is about 232.7299209340.

The spelling of 12605401 in words is "twelve million, six hundred five thousand, four hundred one".