105021086 has 4 divisors (see below), whose sum is σ = 157531632. Its totient is φ = 52510542.

The previous prime is 105021083. The next prime is 105021107. The reversal of 105021086 is 680120501.

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

It is a super-2 number, since 2×105021086² = 22058857009238792, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105021083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26255270 + ... + 26255273.

It is an arithmetic number, because the mean of its divisors is an integer number (39382908).

Almost surely, 2^105021086 is an apocalyptic number.

105021086 is a deficient number, since it is larger than the sum of its proper divisors (52510546).

105021086 is an equidigital number, since it uses as much as digits as its factorization.

105021086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52510545.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 105021086 is about 10247.9796057564. The cubic root of 105021086 is about 471.8009760117.

Adding to 105021086 its reverse (680120501), we get a palindrome (785141587).

The spelling of 105021086 in words is "one hundred five million, twenty-one thousand, eighty-six".