105640807 has 2 divisors, whose sum is σ = 105640808. Its totient is φ = 105640806.

The previous prime is 105640793. The next prime is 105640811. The reversal of 105640807 is 708046501.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 105640807 - 2¹⁵ = 105608039 is a prime.

It is a super-2 number, since 2×105640807² = 22319960207222498, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105640867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52820403 + 52820404.

It is an arithmetic number, because the mean of its divisors is an integer number (52820404).

Almost surely, 2^105640807 is an apocalyptic number.

105640807 is a deficient number, since it is larger than the sum of its proper divisors (1).

105640807 is an equidigital number, since it uses as much as digits as its factorization.

105640807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 105640807 is about 10278.1713840547. The cubic root of 105640807 is about 472.7271764804.

The spelling of 105640807 in words is "one hundred five million, six hundred forty thousand, eight hundred seven".