7126217 has 6 divisors (see below), whose sum is σ = 8289738. Its totient is φ = 6108144.

The previous prime is 7126201. The next prime is 7126243.

7126217 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 4923961 + 2202256 = 2219^2 + 1484^2 .

It is not a de Polignac number, because 7126217 - 2⁴ = 7126201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7126277) 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 in 5 ways as a sum of consecutive naturals, for example, 72668 + ... + 72765.

It is an arithmetic number, because the mean of its divisors is an integer number (1381623).

Almost surely, 2^7126217 is an apocalyptic number.

It is an amenable number.

7126217 is a deficient number, since it is larger than the sum of its proper divisors (1163521).

7126217 is a wasteful number, since it uses less digits than its factorization.

7126217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145447 (or 145440 counting only the distinct ones).

The product of its digits is 1176, while the sum is 26.

The square root of 7126217 is about 2669.4975182607. The cubic root of 7126217 is about 192.4360117901.

The spelling of 7126217 in words is "seven million, one hundred twenty-six thousand, two hundred seventeen".