105261899 has 2 divisors, whose sum is σ = 105261900. Its totient is φ = 105261898.

The previous prime is 105261889. The next prime is 105261931. The reversal of 105261899 is 998162501.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 105261899 - 2¹⁶ = 105196363 is a prime.

It is a super-2 number, since 2×105261899² = 22160134762172402, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (105261809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52630949 + 52630950.

It is an arithmetic number, because the mean of its divisors is an integer number (52630950).

Almost surely, 2^105261899 is an apocalyptic number.

105261899 is a deficient number, since it is larger than the sum of its proper divisors (1).

105261899 is an equidigital number, since it uses as much as digits as its factorization.

105261899 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 41.

The square root of 105261899 is about 10259.7221697276. The cubic root of 105261899 is about 472.1613134226.

The spelling of 105261899 in words is "one hundred five million, two hundred sixty-one thousand, eight hundred ninety-nine".