12654149 has 2 divisors, whose sum is σ = 12654150. Its totient is φ = 12654148.

The previous prime is 12654127. The next prime is 12654157. The reversal of 12654149 is 94145621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11764900 + 889249 = 3430^2 + 943^2 .

It is an emirp because it is prime and its reverse (94145621) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12654149 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12654119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6327074 + 6327075.

It is an arithmetic number, because the mean of its divisors is an integer number (6327075).

Almost surely, 2^12654149 is an apocalyptic number.

It is an amenable number.

12654149 is a deficient number, since it is larger than the sum of its proper divisors (1).

12654149 is an equidigital number, since it uses as much as digits as its factorization.

12654149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 32.

The square root of 12654149 is about 3557.2670689730. The cubic root of 12654149 is about 233.0295418344.

The spelling of 12654149 in words is "twelve million, six hundred fifty-four thousand, one hundred forty-nine".