105000005491 has 2 divisors, whose sum is σ = 105000005492. Its totient is φ = 105000005490.

The previous prime is 105000005441. The next prime is 105000005533. The reversal of 105000005491 is 194500000501.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 105000005491 - 2¹³ = 104999997299 is a prime.

It is a super-2 number, since 2×105000005491² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (105000005401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52500002745 + 52500002746.

It is an arithmetic number, because the mean of its divisors is an integer number (52500002746).

Almost surely, 2^105000005491 is an apocalyptic number.

105000005491 is a deficient number, since it is larger than the sum of its proper divisors (1).

105000005491 is an equidigital number, since it uses as much as digits as its factorization.

105000005491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 25.

Adding to 105000005491 its reverse (194500000501), we get a palindrome (299500005992).

The spelling of 105000005491 in words is "one hundred five billion, five thousand, four hundred ninety-one".