121444853 has 8 divisors (see below), whose sum is σ = 128253888. Its totient is φ = 114763264.

The previous prime is 121444849. The next prime is 121444859. The reversal of 121444853 is 358444121.

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 121444853 - 2² = 121444849 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121444859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29900 + ... + 33717.

It is an arithmetic number, because the mean of its divisors is an integer number (16031736).

Almost surely, 2^121444853 is an apocalyptic number.

It is an amenable number.

121444853 is a deficient number, since it is larger than the sum of its proper divisors (6809035).

121444853 is an equidigital number, since it uses as much as digits as its factorization.

121444853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63723.

The product of its digits is 15360, while the sum is 32.

The square root of 121444853 is about 11020.2020398902. The cubic root of 121444853 is about 495.2141412690.

Adding to 121444853 its reverse (358444121), we get a palindrome (479888974).

The spelling of 121444853 in words is "one hundred twenty-one million, four hundred forty-four thousand, eight hundred fifty-three".