126012161 has 8 divisors (see below), whose sum is σ = 144703200. Its totient is φ = 108527040.

The previous prime is 126012151. The next prime is 126012169. The reversal of 126012161 is 161210621.

126012161 is nontrivially palindromic in base 15.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 126012161 - 2⁶ = 126012097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (126012169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 301256 + ... + 301673.

It is an arithmetic number, because the mean of its divisors is an integer number (18087900).

Almost surely, 2^126012161 is an apocalyptic number.

126012161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

126012161 is a deficient number, since it is larger than the sum of its proper divisors (18691039).

126012161 is a wasteful number, since it uses less digits than its factorization.

126012161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602959.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 126012161 is about 11225.5138412458. The cubic root of 126012161 is about 501.3459217385.

Adding to 126012161 its reverse (161210621), we get a palindrome (287222782).

The spelling of 126012161 in words is "one hundred twenty-six million, twelve thousand, one hundred sixty-one".