105164987 has 4 divisors (see below), whose sum is σ = 106646256. Its totient is φ = 103683720.

The previous prime is 105164977. The next prime is 105165023. The reversal of 105164987 is 789461501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 105164987 - 2⁶ = 105164923 is a prime.

It is a super-2 number, since 2×105164987² = 22119348981420338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105164977) 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 in 3 ways as a sum of consecutive naturals, for example, 740528 + ... + 740669.

It is an arithmetic number, because the mean of its divisors is an integer number (26661564).

Almost surely, 2^105164987 is an apocalyptic number.

105164987 is a deficient number, since it is larger than the sum of its proper divisors (1481269).

105164987 is an equidigital number, since it uses as much as digits as its factorization.

105164987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1481268.

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 105164987 is about 10254.9981472451. The cubic root of 105164987 is about 472.0163665564.

The spelling of 105164987 in words is "one hundred five million, one hundred sixty-four thousand, nine hundred eighty-seven".