105557087 has 2 divisors, whose sum is σ = 105557088. Its totient is φ = 105557086.

The previous prime is 105557069. The next prime is 105557117. The reversal of 105557087 is 780755501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 105557087 - 2⁸ = 105556831 is a prime.

It is a super-2 number, since 2×105557087² = 22284597231851138, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 105557087.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105557047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52778543 + 52778544.

It is an arithmetic number, because the mean of its divisors is an integer number (52778544).

Almost surely, 2^105557087 is an apocalyptic number.

105557087 is a deficient number, since it is larger than the sum of its proper divisors (1).

105557087 is an equidigital number, since it uses as much as digits as its factorization.

105557087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 49000, while the sum is 38.

The square root of 105557087 is about 10274.0978679395. The cubic root of 105557087 is about 472.6022652213.

The spelling of 105557087 in words is "one hundred five million, five hundred fifty-seven thousand, eighty-seven".