126655169 has 2 divisors, whose sum is σ = 126655170. Its totient is φ = 126655168.

The previous prime is 126655163. The next prime is 126655171. The reversal of 126655169 is 961556621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97278769 + 29376400 = 9863^2 + 5420^2 .

It is a cyclic number.

It is not a de Polignac number, because 126655169 - 2¹² = 126651073 is a prime.

It is a super-2 number, since 2×126655169² = 32083063668837122, which contains 22 as substring.

Together with 126655171, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (126655163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63327584 + 63327585.

It is an arithmetic number, because the mean of its divisors is an integer number (63327585).

Almost surely, 2^126655169 is an apocalyptic number.

It is an amenable number.

126655169 is a deficient number, since it is larger than the sum of its proper divisors (1).

126655169 is an equidigital number, since it uses as much as digits as its factorization.

126655169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 97200, while the sum is 41.

The square root of 126655169 is about 11254.1178685848. The cubic root of 126655169 is about 502.1972222848.

The spelling of 126655169 in words is "one hundred twenty-six million, six hundred fifty-five thousand, one hundred sixty-nine".