105136865 has 4 divisors (see below), whose sum is σ = 126164244. Its totient is φ = 84109488.

The previous prime is 105136819. The next prime is 105136873. The reversal of 105136865 is 568631501.

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

It can be written as a sum of positive squares in 2 ways, for example, as 34845409 + 70291456 = 5903^2 + 8384^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105136865 is a prime.

It is a super-2 number, since 2×105136865² = 22107520764056450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10513682 + ... + 10513691.

It is an arithmetic number, because the mean of its divisors is an integer number (31541061).

Almost surely, 2^105136865 is an apocalyptic number.

It is an amenable number.

105136865 is a deficient number, since it is larger than the sum of its proper divisors (21027379).

105136865 is an equidigital number, since it uses as much as digits as its factorization.

105136865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21027378.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 105136865 is about 10253.6269192906. The cubic root of 105136865 is about 471.9742890931.

The spelling of 105136865 in words is "one hundred five million, one hundred thirty-six thousand, eight hundred sixty-five".