126866293 has 2 divisors, whose sum is σ = 126866294. Its totient is φ = 126866292.

The previous prime is 126866239. The next prime is 126866351. The reversal of 126866293 is 392668621.

Together with previous prime (126866239) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120626289 + 6240004 = 10983^2 + 2498^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126866293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126806293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63433146 + 63433147.

It is an arithmetic number, because the mean of its divisors is an integer number (63433147).

Almost surely, 2^126866293 is an apocalyptic number.

It is an amenable number.

126866293 is a deficient number, since it is larger than the sum of its proper divisors (1).

126866293 is an equidigital number, since it uses as much as digits as its factorization.

126866293 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 126866293 is about 11263.4938185272. The cubic root of 126866293 is about 502.4761082013.

The spelling of 126866293 in words is "one hundred twenty-six million, eight hundred sixty-six thousand, two hundred ninety-three".