126029161 has 2 divisors, whose sum is σ = 126029162. Its totient is φ = 126029160.

The previous prime is 126029159. The next prime is 126029191. The reversal of 126029161 is 161920621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95160025 + 30869136 = 9755^2 + 5556^2 .

It is a cyclic number.

It is not a de Polignac number, because 126029161 - 2¹ = 126029159 is a prime.

Together with 126029159, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (126029191) 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, 63014580 + 63014581.

It is an arithmetic number, because the mean of its divisors is an integer number (63014581).

Almost surely, 2^126029161 is an apocalyptic number.

It is an amenable number.

126029161 is a deficient number, since it is larger than the sum of its proper divisors (1).

126029161 is an equidigital number, since it uses as much as digits as its factorization.

126029161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 126029161 is about 11226.2710193546. The cubic root of 126029161 is about 501.3684658521.

Adding to 126029161 its reverse (161920621), we get a palindrome (287949782).

The spelling of 126029161 in words is "one hundred twenty-six million, twenty-nine thousand, one hundred sixty-one".