1444981 has 2 divisors, whose sum is σ = 1444982. Its totient is φ = 1444980.

The previous prime is 1444979. The next prime is 1444999. The reversal of 1444981 is 1894441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1311025 + 133956 = 1145^2 + 366^2 .

It is a cyclic number.

It is not a de Polignac number, because 1444981 - 2¹ = 1444979 is a prime.

It is a super-2 number, since 2×1444981² = 4175940180722, which contains 22 as substring.

Together with 1444979, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1444901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722490 + 722491.

It is an arithmetic number, because the mean of its divisors is an integer number (722491).

2^1444981 is an apocalyptic number.

It is an amenable number.

1444981 is a deficient number, since it is larger than the sum of its proper divisors (1).

1444981 is an equidigital number, since it uses as much as digits as its factorization.

1444981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4608, while the sum is 31.

The square root of 1444981 is about 1202.0736250330. The cubic root of 1444981 is about 113.0543764191.

The spelling of 1444981 in words is "one million, four hundred forty-four thousand, nine hundred eighty-one".