126611171 has 2 divisors, whose sum is σ = 126611172. Its totient is φ = 126611170.

The previous prime is 126611137. The next prime is 126611197. The reversal of 126611171 is 171116621.

It is a happy number.

It is an a-pointer prime, because the next prime (126611197) can be obtained adding 126611171 to its sum of digits (26).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 126611171 - 2²⁶ = 59502307 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 126611171.

It is not a weakly prime, because it can be changed into another prime (126611101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63305585 + 63305586.

It is an arithmetic number, because the mean of its divisors is an integer number (63305586).

Almost surely, 2^126611171 is an apocalyptic number.

126611171 is a deficient number, since it is larger than the sum of its proper divisors (1).

126611171 is an equidigital number, since it uses as much as digits as its factorization.

126611171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 504, while the sum is 26.

The square root of 126611171 is about 11252.1629476292. The cubic root of 126611171 is about 502.1390637625.

Adding to 126611171 its reverse (171116621), we get a palindrome (297727792).

The spelling of 126611171 in words is "one hundred twenty-six million, six hundred eleven thousand, one hundred seventy-one".