7126289 has 2 divisors, whose sum is σ = 7126290. Its totient is φ = 7126288.

The previous prime is 7126279. The next prime is 7126291. The reversal of 7126289 is 9826217.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6932689 + 193600 = 2633^2 + 440^2 .

It is a cyclic number.

It is not a de Polignac number, because 7126289 - 2²⁰ = 6077713 is a prime.

Together with 7126291, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7126279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3563144 + 3563145.

It is an arithmetic number, because the mean of its divisors is an integer number (3563145).

Almost surely, 2^7126289 is an apocalyptic number.

It is an amenable number.

7126289 is a deficient number, since it is larger than the sum of its proper divisors (1).

7126289 is an equidigital number, since it uses as much as digits as its factorization.

7126289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 35.

The square root of 7126289 is about 2669.5110039106. The cubic root of 7126289 is about 192.4366598828.

The spelling of 7126289 in words is "seven million, one hundred twenty-six thousand, two hundred eighty-nine".