105035821 has 4 divisors (see below), whose sum is σ = 114584544. Its totient is φ = 95487100.

The previous prime is 105035813. The next prime is 105035837. The reversal of 105035821 is 128530501.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 105035821 - 2³ = 105035813 is a prime.

It is a super-2 number, since 2×105035821² = 22065047386288082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105035881) 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, 4774345 + ... + 4774366.

It is an arithmetic number, because the mean of its divisors is an integer number (28646136).

Almost surely, 2^105035821 is an apocalyptic number.

105035821 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

105035821 is a deficient number, since it is larger than the sum of its proper divisors (9548723).

105035821 is an equidigital number, since it uses as much as digits as its factorization.

105035821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9548722.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 105035821 is about 10248.6985027368. The cubic root of 105035821 is about 471.8230403498.

The spelling of 105035821 in words is "one hundred five million, thirty-five thousand, eight hundred twenty-one".