43145120 has 48 divisors (see below), whose sum is σ = 104432328. Its totient is φ = 16834560.

The previous prime is 43145101. The next prime is 43145131. The reversal of 43145120 is 2154134.

It can be written as a sum of positive squares in 4 ways, for example, as 36529936 + 6615184 = 6044^2 + 2572^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 43145092 and 43145101.

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, 3272 + ... + 9848.

Almost surely, 2^43145120 is an apocalyptic number.

43145120 is a gapful number since it is divisible by the number (40) 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 43145120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52216164).

43145120 is an abundant number, since it is smaller than the sum of its proper divisors (61287208).

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

43145120 is a wasteful number, since it uses less digits than its factorization.

43145120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6633 (or 6625 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 43145120 is about 6568.4945002641. The cubic root of 43145120 is about 350.7334822026.

Adding to 43145120 its reverse (2154134), we get a palindrome (45299254).

The spelling of 43145120 in words is "forty-three million, one hundred forty-five thousand, one hundred twenty".