105144427 has 2 divisors, whose sum is σ = 105144428. Its totient is φ = 105144426.

The previous prime is 105144409. The next prime is 105144433. The reversal of 105144427 is 724441501.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 105144427 - 2¹¹ = 105142379 is a prime.

It is a super-2 number, since 2×105144427² = 22110701058316658, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105144395 and 105144404.

It is not a weakly prime, because it can be changed into another prime (105144437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52572213 + 52572214.

It is an arithmetic number, because the mean of its divisors is an integer number (52572214).

Almost surely, 2^105144427 is an apocalyptic number.

105144427 is a deficient number, since it is larger than the sum of its proper divisors (1).

105144427 is an equidigital number, since it uses as much as digits as its factorization.

105144427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 105144427 is about 10253.9956602292. The cubic root of 105144427 is about 471.9856044518.

Adding to 105144427 its reverse (724441501), we get a palindrome (829585928).

It can be divided in two parts, 10514 and 4427, that added together give a palindrome (14941).

The spelling of 105144427 in words is "one hundred five million, one hundred forty-four thousand, four hundred twenty-seven".