126864137 has 2 divisors, whose sum is σ = 126864138. Its totient is φ = 126864136.

The previous prime is 126864107. The next prime is 126864163. The reversal of 126864137 is 731468621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116553616 + 10310521 = 10796^2 + 3211^2 .

It is a cyclic number.

It is not a de Polignac number, because 126864137 - 2²⁶ = 59755273 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 126864137.

It is not a weakly prime, because it can be changed into another prime (126864107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63432068 + 63432069.

It is an arithmetic number, because the mean of its divisors is an integer number (63432069).

Almost surely, 2^126864137 is an apocalyptic number.

It is an amenable number.

126864137 is a deficient number, since it is larger than the sum of its proper divisors (1).

126864137 is an equidigital number, since it uses as much as digits as its factorization.

126864137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 38.

The square root of 126864137 is about 11263.3981106947. The cubic root of 126864137 is about 502.4732617803.

The spelling of 126864137 in words is "one hundred twenty-six million, eight hundred sixty-four thousand, one hundred thirty-seven".