43015205145 has 64 divisors (see below), whose sum is σ = 81436803840. Its totient is φ = 19150233600.

The previous prime is 43015205137. The next prime is 43015205159. The reversal of 43015205145 is 54150251034.

43015205145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 43015205145 - 2³ = 43015205137 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 72010 + ... + 302019.

It is an arithmetic number, because the mean of its divisors is an integer number (1272450060).

Almost surely, 2^43015205145 is an apocalyptic number.

It is an amenable number.

43015205145 is a deficient number, since it is larger than the sum of its proper divisors (38421598695).

43015205145 is a wasteful number, since it uses less digits than its factorization.

43015205145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374106.

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 43015205145 its reverse (54150251034), we get a palindrome (97165456179).

It can be divided in two parts, 43015 and 205145, that added together give a triangular number (248160 = T₇₀₄).

The spelling of 43015205145 in words is "forty-three billion, fifteen million, two hundred five thousand, one hundred forty-five".