126245117 has 2 divisors, whose sum is σ = 126245118. Its totient is φ = 126245116.

The previous prime is 126245087. The next prime is 126245123. The reversal of 126245117 is 711542621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119990116 + 6255001 = 10954^2 + 2501^2 .

It is an emirp because it is prime and its reverse (711542621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126245117 - 2¹⁴ = 126228733 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 126245117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126245017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63122558 + 63122559.

It is an arithmetic number, because the mean of its divisors is an integer number (63122559).

Almost surely, 2^126245117 is an apocalyptic number.

It is an amenable number.

126245117 is a deficient number, since it is larger than the sum of its proper divisors (1).

126245117 is an equidigital number, since it uses as much as digits as its factorization.

126245117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3360, while the sum is 29.

The square root of 126245117 is about 11235.8852343729. The cubic root of 126245117 is about 501.6546740669.

Adding to 126245117 its reverse (711542621), we get a palindrome (837787738).

The spelling of 126245117 in words is "one hundred twenty-six million, two hundred forty-five thousand, one hundred seventeen".