12610421 has 2 divisors, whose sum is σ = 12610422. Its totient is φ = 12610420.

The previous prime is 12610387. The next prime is 12610441. The reversal of 12610421 is 12401621.

12610421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12602500 + 7921 = 3550^2 + 89^2 .

It is a cyclic number.

It is not a de Polignac number, because 12610421 - 2¹⁴ = 12594037 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12610421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12610441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6305210 + 6305211.

It is an arithmetic number, because the mean of its divisors is an integer number (6305211).

Almost surely, 2^12610421 is an apocalyptic number.

It is an amenable number.

12610421 is a deficient number, since it is larger than the sum of its proper divisors (1).

12610421 is an equidigital number, since it uses as much as digits as its factorization.

12610421 is an evil number, because the sum of its binary digits is even.

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

The square root of 12610421 is about 3551.1154585566. The cubic root of 12610421 is about 232.7608111095.

It can be divided in two parts, 12610 and 421, that added together give a palindrome (13031).

The spelling of 12610421 in words is "twelve million, six hundred ten thousand, four hundred twenty-one".