12373561 has 2 divisors, whose sum is σ = 12373562. Its totient is φ = 12373560.

The previous prime is 12373523. The next prime is 12373567. The reversal of 12373561 is 16537321.

12373561 is digitally balanced in base 3, 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., 8880400 + 3493161 = 2980^2 + 1869^2 .

It is a cyclic number.

It is not a de Polignac number, because 12373561 - 2¹³ = 12365369 is a prime.

It is equal to p₈₁₀₉₈₂ and since 12373561 and 810982 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (12373567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6186780 + 6186781.

It is an arithmetic number, because the mean of its divisors is an integer number (6186781).

Almost surely, 2^12373561 is an apocalyptic number.

It is an amenable number.

12373561 is a deficient number, since it is larger than the sum of its proper divisors (1).

12373561 is an equidigital number, since it uses as much as digits as its factorization.

12373561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3780, while the sum is 28.

The square root of 12373561 is about 3517.6072833675. The cubic root of 12373561 is about 231.2942845796.

The spelling of 12373561 in words is "twelve million, three hundred seventy-three thousand, five hundred sixty-one".