105109087 has 2 divisors, whose sum is σ = 105109088. Its totient is φ = 105109086.

The previous prime is 105109073. The next prime is 105109099. The reversal of 105109087 is 780901501.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 105109087 - 2¹⁵ = 105076319 is a prime.

It is a super-2 number, since 2×105109087² = 22095840339947138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105109187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52554543 + 52554544.

It is an arithmetic number, because the mean of its divisors is an integer number (52554544).

Almost surely, 2^105109087 is an apocalyptic number.

105109087 is a deficient number, since it is larger than the sum of its proper divisors (1).

105109087 is an equidigital number, since it uses as much as digits as its factorization.

105109087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 31.

The square root of 105109087 is about 10252.2722847182. The cubic root of 105109087 is about 471.9327189721.

The spelling of 105109087 in words is "one hundred five million, one hundred nine thousand, eighty-seven".