105421204 has 24 divisors (see below), whose sum is σ = 217645568. Its totient is φ = 43722720.

The previous prime is 105421193. The next prime is 105421223. The reversal of 105421204 is 402124501.

It is a super-2 number, since 2×105421204² = 22227260505619232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 59859 + ... + 61594.

Almost surely, 2^105421204 is an apocalyptic number.

105421204 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

105421204 is an abundant number, since it is smaller than the sum of its proper divisors (112224364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

105421204 is a wasteful number, since it uses less digits than its factorization.

105421204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121495 (or 121493 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 105421204 is about 10267.4828463455. The cubic root of 105421204 is about 472.3993854614.

Adding to 105421204 its reverse (402124501), we get a palindrome (507545705).

It can be divided in two parts, 105421 and 204, that added together give a square (105625 = 325²).

The spelling of 105421204 in words is "one hundred five million, four hundred twenty-one thousand, two hundred four".