7126549 has 2 divisors, whose sum is σ = 7126550. Its totient is φ = 7126548.

The previous prime is 7126543. The next prime is 7126583. The reversal of 7126549 is 9456217.

It is an a-pointer prime, because the next prime (7126583) can be obtained adding 7126549 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4485924 + 2640625 = 2118^2 + 1625^2 .

It is a cyclic number.

It is not a de Polignac number, because 7126549 - 2⁵ = 7126517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7126543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3563274 + 3563275.

It is an arithmetic number, because the mean of its divisors is an integer number (3563275).

Almost surely, 2^7126549 is an apocalyptic number.

It is an amenable number.

7126549 is a deficient number, since it is larger than the sum of its proper divisors (1).

7126549 is an equidigital number, since it uses as much as digits as its factorization.

7126549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 34.

The square root of 7126549 is about 2669.5597015238. The cubic root of 7126549 is about 192.4390001809.

The spelling of 7126549 in words is "seven million, one hundred twenty-six thousand, five hundred forty-nine".