43151020 has 48 divisors (see below), whose sum is σ = 99733536. Its totient is φ = 15681600.

The previous prime is 43150969. The next prime is 43151047. The reversal of 43151020 is 2015134.

43151020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 43150985 and 43151003.

It is a congruent number.

It is an unprimeable number.

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, 25810 + ... + 27430.

It is an arithmetic number, because the mean of its divisors is an integer number (2077782).

Almost surely, 2^43151020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43151020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49866768).

43151020 is an abundant number, since it is smaller than the sum of its proper divisors (56582516).

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

43151020 is a wasteful number, since it uses less digits than its factorization.

43151020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1663 (or 1639 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 43151020 is about 6568.9435984791. The cubic root of 43151020 is about 350.7494688172.

Adding to 43151020 its reverse (2015134), we get a palindrome (45166154).

It can be divided in two parts, 4315 and 1020, that added together give a palindrome (5335).

The spelling of 43151020 in words is "forty-three million, one hundred fifty-one thousand, twenty".