12435949 has 2 divisors, whose sum is σ = 12435950. Its totient is φ = 12435948.

The previous prime is 12435947. The next prime is 12435971. The reversal of 12435949 is 94953421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12299049 + 136900 = 3507^2 + 370^2 .

It is an emirp because it is prime and its reverse (94953421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12435949 - 2¹ = 12435947 is a prime.

Together with 12435947, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12435947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6217974 + 6217975.

It is an arithmetic number, because the mean of its divisors is an integer number (6217975).

Almost surely, 2^12435949 is an apocalyptic number.

It is an amenable number.

12435949 is a deficient number, since it is larger than the sum of its proper divisors (1).

12435949 is an equidigital number, since it uses as much as digits as its factorization.

12435949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 37.

The square root of 12435949 is about 3526.4640931108. The cubic root of 12435949 is about 231.6823648133.

The spelling of 12435949 in words is "twelve million, four hundred thirty-five thousand, nine hundred forty-nine".