105079811 has 4 divisors (see below), whose sum is σ = 105121824. Its totient is φ = 105037800.

The previous prime is 105079781. The next prime is 105079837. The reversal of 105079811 is 118970501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 118970501 = 13 ⋅9151577.

It is a cyclic number.

It is not a de Polignac number, because 105079811 - 2²² = 100885507 is a prime.

It is a super-2 number, since 2×105079811² = 22083533359591442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105079841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17000 + ... + 22341.

It is an arithmetic number, because the mean of its divisors is an integer number (26280456).

Almost surely, 2^105079811 is an apocalyptic number.

105079811 is a deficient number, since it is larger than the sum of its proper divisors (42013).

105079811 is an equidigital number, since it uses as much as digits as its factorization.

105079811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42012.

The product of its (nonzero) digits is 2520, while the sum is 32.

The square root of 105079811 is about 10250.8444042430. The cubic root of 105079811 is about 471.8888991476. Note that the first 4 decimals are identical.

The spelling of 105079811 in words is "one hundred five million, seventy-nine thousand, eight hundred eleven".