126336161 has 8 divisors (see below), whose sum is σ = 147331200. Its totient is φ = 108287844.

The previous prime is 126336157. The next prime is 126336181. The reversal of 126336161 is 161633621.

It is a happy number.

It is not a de Polignac number, because 126336161 - 2² = 126336157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126336121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183821 + ... + 184506.

It is an arithmetic number, because the mean of its divisors is an integer number (18416400).

Almost surely, 2^126336161 is an apocalyptic number.

It is an amenable number.

126336161 is a deficient number, since it is larger than the sum of its proper divisors (20995039).

126336161 is an frugal number, since it uses more digits than its factorization.

126336161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368348 (or 368334 counting only the distinct ones).

The product of its digits is 3888, while the sum is 29.

The square root of 126336161 is about 11239.9359873622. The cubic root of 126336161 is about 501.7752376034.

Adding to 126336161 its reverse (161633621), we get a palindrome (287969782).

The spelling of 126336161 in words is "one hundred twenty-six million, three hundred thirty-six thousand, one hundred sixty-one".