12373661 has 2 divisors, whose sum is σ = 12373662. Its totient is φ = 12373660.

The previous prime is 12373639. The next prime is 12373679. The reversal of 12373661 is 16637321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6661561 + 5712100 = 2581^2 + 2390^2 .

It is a cyclic number.

It is not a de Polignac number, because 12373661 - 2⁶ = 12373597 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12373631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6186830 + 6186831.

It is an arithmetic number, because the mean of its divisors is an integer number (6186831).

Almost surely, 2^12373661 is an apocalyptic number.

It is an amenable number.

12373661 is a deficient number, since it is larger than the sum of its proper divisors (1).

12373661 is an equidigital number, since it uses as much as digits as its factorization.

12373661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536, while the sum is 29.

The square root of 12373661 is about 3517.6214975463. The cubic root of 12373661 is about 231.2949076652.

The spelling of 12373661 in words is "twelve million, three hundred seventy-three thousand, six hundred sixty-one".