105004891 has 2 divisors, whose sum is σ = 105004892. Its totient is φ = 105004890.

The previous prime is 105004873. The next prime is 105004951. The reversal of 105004891 is 198400501.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 105004891 - 2⁵ = 105004859 is a prime.

It is a super-2 number, since 2×105004891² = 22052054267843762, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (105004831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52502445 + 52502446.

It is an arithmetic number, because the mean of its divisors is an integer number (52502446).

Almost surely, 2^105004891 is an apocalyptic number.

105004891 is a deficient number, since it is larger than the sum of its proper divisors (1).

105004891 is an equidigital number, since it uses as much as digits as its factorization.

105004891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 105004891 is about 10247.1894195433. The cubic root of 105004891 is about 471.7767230739.

The spelling of 105004891 in words is "one hundred five million, four thousand, eight hundred ninety-one".