105401281 has 2 divisors, whose sum is σ = 105401282. Its totient is φ = 105401280.

The previous prime is 105401137. The next prime is 105401291. The reversal of 105401281 is 182104501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100821681 + 4579600 = 10041^2 + 2140^2 .

It is a cyclic number.

It is not a de Polignac number, because 105401281 - 2²³ = 97012673 is a prime.

It is a super-2 number, since 2×105401281² = 22218860072881922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (105401291) 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, 52700640 + 52700641.

It is an arithmetic number, because the mean of its divisors is an integer number (52700641).

Almost surely, 2^105401281 is an apocalyptic number.

It is an amenable number.

105401281 is a deficient number, since it is larger than the sum of its proper divisors (1).

105401281 is an equidigital number, since it uses as much as digits as its factorization.

105401281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 105401281 is about 10266.5126016579. The cubic root of 105401281 is about 472.3696248265.

Adding to 105401281 its reverse (182104501), we get a palindrome (287505782).

The spelling of 105401281 in words is "one hundred five million, four hundred one thousand, two hundred eighty-one".