105224140 has 48 divisors (see below), whose sum is σ = 256838400. Its totient is φ = 35462592.

The previous prime is 105224107. The next prime is 105224143. The reversal of 105224140 is 41422501.

It is a super-2 number, since 2×105224140² = 22144239277479200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105224143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1891 + ... + 14629.

It is an arithmetic number, because the mean of its divisors is an integer number (5350800).

Almost surely, 2^105224140 is an apocalyptic number.

105224140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 105224140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128419200).

105224140 is an abundant number, since it is smaller than the sum of its proper divisors (151614260).

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

105224140 is a wasteful number, since it uses less digits than its factorization.

105224140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12814 (or 12812 counting only the distinct ones).

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

The square root of 105224140 is about 10257.8818476331. The cubic root of 105224140 is about 472.1048495885.

Adding to 105224140 its reverse (41422501), we get a palindrome (146646641).

The spelling of 105224140 in words is "one hundred five million, two hundred twenty-four thousand, one hundred forty".