121444 has 12 divisors (see below), whose sum is σ = 215404. Its totient is φ = 59904.

The previous prime is 121441. The next prime is 121447. The reversal of 121444 is 444121.

It is an interprime number because it is at equal distance from previous prime (121441) and next prime (121447).

It can be written as a sum of positive squares in 2 ways, for example, as 19044 + 102400 = 138^2 + 320^2 .

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (121441) 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, 232 + ... + 544.

2¹²¹⁴⁴⁴ is an apocalyptic number.

It is an amenable number.

121444 is a deficient number, since it is larger than the sum of its proper divisors (93960).

121444 is a wasteful number, since it uses less digits than its factorization.

121444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414 (or 412 counting only the distinct ones).

The product of its digits is 128, while the sum is 16.

The square root of 121444 is about 348.4881633571. The cubic root of 121444 is about 49.5212981844.

Adding to 121444 its reverse (444121), we get a palindrome (565565).

It can be divided in two parts, 121 and 444, that added together give a palindrome (565).

The spelling of 121444 in words is "one hundred twenty-one thousand, four hundred forty-four", and thus it is an iban number.