105021814 has 4 divisors (see below), whose sum is σ = 157532724. Its totient is φ = 52510906.

The previous prime is 105021751. The next prime is 105021817. The reversal of 105021814 is 418120501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 418120501 = 41 ⋅10198061.

It is a super-2 number, since 2×105021814² = 22059162831701192, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105021817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26255452 + ... + 26255455.

It is an arithmetic number, because the mean of its divisors is an integer number (39383181).

Almost surely, 2^105021814 is an apocalyptic number.

105021814 is a deficient number, since it is larger than the sum of its proper divisors (52510910).

105021814 is an equidigital number, since it uses as much as digits as its factorization.

105021814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52510909.

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 105021814 is about 10248.0151248913. The cubic root of 105021814 is about 471.8020661747.

The spelling of 105021814 in words is "one hundred five million, twenty-one thousand, eight hundred fourteen".