126867269 has 2 divisors, whose sum is σ = 126867270. Its totient is φ = 126867268.

The previous prime is 126867259. The next prime is 126867271. The reversal of 126867269 is 962768621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 126855169 + 12100 = 11263^2 + 110^2 .

It is an emirp because it is prime and its reverse (962768621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126867269 - 2¹² = 126863173 is a prime.

It is a super-2 number, since 2×126867269² = 32190607887036722, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 126867271, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126867259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63433634 + 63433635.

It is an arithmetic number, because the mean of its divisors is an integer number (63433635).

Almost surely, 2^126867269 is an apocalyptic number.

It is an amenable number.

126867269 is a deficient number, since it is larger than the sum of its proper divisors (1).

126867269 is an equidigital number, since it uses as much as digits as its factorization.

126867269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 47.

The square root of 126867269 is about 11263.5371442545. The cubic root of 126867269 is about 502.4773967375.

The spelling of 126867269 in words is "one hundred twenty-six million, eight hundred sixty-seven thousand, two hundred sixty-nine".