121449441 has 4 divisors (see below), whose sum is σ = 161932592. Its totient is φ = 80966292.

The previous prime is 121449439. The next prime is 121449473. The reversal of 121449441 is 144944121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 121449441 - 2¹ = 121449439 is a prime.

It is a super-3 number, since 3×121449441³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121449399 and 121449408.

It is not an unprimeable number, because it can be changed into a prime (121449401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20241571 + ... + 20241576.

It is an arithmetic number, because the mean of its divisors is an integer number (40483148).

Almost surely, 2^121449441 is an apocalyptic number.

It is an amenable number.

121449441 is a deficient number, since it is larger than the sum of its proper divisors (40483151).

121449441 is an equidigital number, since it uses as much as digits as its factorization.

121449441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40483150.

The product of its digits is 4608, while the sum is 30.

The square root of 121449441 is about 11020.4102010769. The cubic root of 121449441 is about 495.2203773337.

The spelling of 121449441 in words is "one hundred twenty-one million, four hundred forty-nine thousand, four hundred forty-one".