105054240581 has 2 divisors, whose sum is σ = 105054240582. Its totient is φ = 105054240580.

The previous prime is 105054240481. The next prime is 105054240719. The reversal of 105054240581 is 185042450501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103622829025 + 1431411556 = 321905^2 + 37834^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105054240581 is a prime.

It is a super-2 number, since 2×105054240581² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105054240481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52527120290 + 52527120291.

It is an arithmetic number, because the mean of its divisors is an integer number (52527120291).

Almost surely, 2^105054240581 is an apocalyptic number.

It is an amenable number.

105054240581 is a deficient number, since it is larger than the sum of its proper divisors (1).

105054240581 is an equidigital number, since it uses as much as digits as its factorization.

105054240581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32000, while the sum is 35.

The spelling of 105054240581 in words is "one hundred five billion, fifty-four million, two hundred forty thousand, five hundred eighty-one".