126144121 has 8 divisors (see below), whose sum is σ = 131819904. Its totient is φ = 120484320.

The previous prime is 126144107. The next prime is 126144133. The reversal of 126144121 is 121441621.

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 126144121 - 2⁷ = 126143993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 126144092 and 126144101.

It is not an unprimeable number, because it can be changed into a prime (126144101) 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, 13900 + ... + 21106.

It is an arithmetic number, because the mean of its divisors is an integer number (16477488).

Almost surely, 2^126144121 is an apocalyptic number.

It is an amenable number.

126144121 is a deficient number, since it is larger than the sum of its proper divisors (5675783).

126144121 is an equidigital number, since it uses as much as digits as its factorization.

126144121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7991.

The product of its digits is 384, while the sum is 22.

The square root of 126144121 is about 11231.3899852155. The cubic root of 126144121 is about 501.5208639221.

Adding to 126144121 its reverse (121441621), we get a palindrome (247585742).

The spelling of 126144121 in words is "one hundred twenty-six million, one hundred forty-four thousand, one hundred twenty-one".