13240949 has 2 divisors, whose sum is σ = 13240950. Its totient is φ = 13240948.

The previous prime is 13240933. The next prime is 13240973. The reversal of 13240949 is 94904231.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13032100 + 208849 = 3610^2 + 457^2 .

It is an emirp because it is prime and its reverse (94904231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13240949 - 2⁴ = 13240933 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 (13240049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6620474 + 6620475.

It is an arithmetic number, because the mean of its divisors is an integer number (6620475).

Almost surely, 2^13240949 is an apocalyptic number.

It is an amenable number.

13240949 is a deficient number, since it is larger than the sum of its proper divisors (1).

13240949 is an equidigital number, since it uses as much as digits as its factorization.

13240949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 13240949 is about 3638.8114817891. The cubic root of 13240949 is about 236.5772818131.

The spelling of 13240949 in words is "thirteen million, two hundred forty thousand, nine hundred forty-nine".