121444413 has 8 divisors (see below), whose sum is σ = 171451008. Its totient is φ = 76200384.

The previous prime is 121444403. The next prime is 121444417. The reversal of 121444413 is 314444121.

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

It is not a de Polignac number, because 121444413 - 2¹⁰ = 121443389 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121444417) 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, 1190581 + ... + 1190682.

It is an arithmetic number, because the mean of its divisors is an integer number (21431376).

Almost surely, 2^121444413 is an apocalyptic number.

It is an amenable number.

121444413 is a deficient number, since it is larger than the sum of its proper divisors (50006595).

121444413 is a wasteful number, since it uses less digits than its factorization.

121444413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2381283.

The product of its digits is 1536, while the sum is 24.

The square root of 121444413 is about 11020.1820765358. The cubic root of 121444413 is about 495.2135432075.

Adding to 121444413 its reverse (314444121), we get a palindrome (435888534).

The spelling of 121444413 in words is "one hundred twenty-one million, four hundred forty-four thousand, four hundred thirteen".