105428225 has 24 divisors (see below), whose sum is σ = 150883200. Its totient is φ = 71579520.

The previous prime is 105428201. The next prime is 105428231. The reversal of 105428225 is 522824501.

It is not a de Polignac number, because 105428225 - 2¹⁶ = 105362689 is a prime.

It is a super-2 number, since 2×105428225² = 22230221253301250, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15101 + ... + 20949.

It is an arithmetic number, because the mean of its divisors is an integer number (6286800).

Almost surely, 2^105428225 is an apocalyptic number.

It is an amenable number.

105428225 is a deficient number, since it is larger than the sum of its proper divisors (45454975).

105428225 is a wasteful number, since it uses less digits than its factorization.

105428225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5969 (or 5964 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 29.

The square root of 105428225 is about 10267.8247452905. The cubic root of 105428225 is about 472.4098724170.

The spelling of 105428225 in words is "one hundred five million, four hundred twenty-eight thousand, two hundred twenty-five".