12073661 has 2 divisors, whose sum is σ = 12073662. Its totient is φ = 12073660.

The previous prime is 12073627. The next prime is 12073681. The reversal of 12073661 is 16637021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12040900 + 32761 = 3470^2 + 181^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12073661 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12073661.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12073681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6036830 + 6036831.

It is an arithmetic number, because the mean of its divisors is an integer number (6036831).

Almost surely, 2^12073661 is an apocalyptic number.

It is an amenable number.

12073661 is a deficient number, since it is larger than the sum of its proper divisors (1).

12073661 is an equidigital number, since it uses as much as digits as its factorization.

12073661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 12073661 is about 3474.7173985808. The cubic root of 12073661 is about 229.4103421203.

The spelling of 12073661 in words is "twelve million, seventy-three thousand, six hundred sixty-one".