121441005 has 32 divisors (see below), whose sum is σ = 246739200. Its totient is φ = 55515456.

The previous prime is 121441003. The next prime is 121441069. The reversal of 121441005 is 500144121.

It is not a de Polignac number, because 121441005 - 2¹ = 121441003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121441003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63310 + ... + 65199.

It is an arithmetic number, because the mean of its divisors is an integer number (7710600).

Almost surely, 2^121441005 is an apocalyptic number.

121441005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121441005 is an abundant number, since it is smaller than the sum of its proper divisors (125298195).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121441005 is a wasteful number, since it uses less digits than its factorization.

121441005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128530 (or 128524 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 121441005 is about 11020.0274500566. The cubic root of 121441005 is about 495.2089109001.

Adding to 121441005 its reverse (500144121), we get a palindrome (621585126).

The spelling of 121441005 in words is "one hundred twenty-one million, four hundred forty-one thousand, five".