44278121 has 2 divisors, whose sum is σ = 44278122. Its totient is φ = 44278120.

The previous prime is 44278109. The next prime is 44278133. The reversal of 44278121 is 12187244.

It is a balanced prime because it is at equal distance from previous prime (44278109) and next prime (44278133).

It can be written as a sum of positive squares in only one way, i.e., 35868121 + 8410000 = 5989^2 + 2900^2 .

It is a cyclic number.

It is not a de Polignac number, because 44278121 - 2⁶ = 44278057 is a prime.

It is a Chen prime.

It is equal to p_2677151 and since 44278121 and 2677151 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (44278141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22139060 + 22139061.

It is an arithmetic number, because the mean of its divisors is an integer number (22139061).

Almost surely, 2^44278121 is an apocalyptic number.

It is an amenable number.

44278121 is a deficient number, since it is larger than the sum of its proper divisors (1).

44278121 is an equidigital number, since it uses as much as digits as its factorization.

44278121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3584, while the sum is 29.

The square root of 44278121 is about 6654.1807159109. The cubic root of 44278121 is about 353.7771081375. Note that the first 3 decimals are identical.

The spelling of 44278121 in words is "forty-four million, two hundred seventy-eight thousand, one hundred twenty-one".