126268693 has 2 divisors, whose sum is σ = 126268694. Its totient is φ = 126268692.

The previous prime is 126268691. The next prime is 126268717. The reversal of 126268693 is 396862621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84511249 + 41757444 = 9193^2 + 6462^2 .

It is an emirp because it is prime and its reverse (396862621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126268693 - 2¹ = 126268691 is a prime.

Together with 126268691, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126268691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63134346 + 63134347.

It is an arithmetic number, because the mean of its divisors is an integer number (63134347).

Almost surely, 2^126268693 is an apocalyptic number.

It is an amenable number.

126268693 is a deficient number, since it is larger than the sum of its proper divisors (1).

126268693 is an equidigital number, since it uses as much as digits as its factorization.

126268693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624, while the sum is 43.

The square root of 126268693 is about 11236.9343239159. The cubic root of 126268693 is about 501.6858997616.

The spelling of 126268693 in words is "one hundred twenty-six million, two hundred sixty-eight thousand, six hundred ninety-three".