105214405 has 16 divisors (see below), whose sum is σ = 131544000. Its totient is φ = 80717440.

The previous prime is 105214399. The next prime is 105214409. The reversal of 105214405 is 504412501.

It is not a de Polignac number, because 105214405 - 2⁹ = 105213893 is a prime.

It is a super-2 number, since 2×105214405² = 22140142039008050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105214409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7746 + ... + 16444.

It is an arithmetic number, because the mean of its divisors is an integer number (8221500).

Almost surely, 2^105214405 is an apocalyptic number.

It is an amenable number.

105214405 is a deficient number, since it is larger than the sum of its proper divisors (26329595).

105214405 is an equidigital number, since it uses as much as digits as its factorization.

105214405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8804.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 105214405 is about 10257.4073234907. The cubic root of 105214405 is about 472.0902899305.

Adding to 105214405 its reverse (504412501), we get a palindrome (609626906).

The spelling of 105214405 in words is "one hundred five million, two hundred fourteen thousand, four hundred five".