43045145 has 36 divisors (see below), whose sum is σ = 61626348. Its totient is φ = 28828800.

The previous prime is 43045141. The next prime is 43045147. The reversal of 43045145 is 54154034.

It can be written as a sum of positive squares in 6 ways, for example, as 23001616 + 20043529 = 4796^2 + 4477^2 .

It is not a de Polignac number, because 43045145 - 2² = 43045141 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43045141) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 102035 + ... + 102455.

It is an arithmetic number, because the mean of its divisors is an integer number (1711843).

Almost surely, 2^43045145 is an apocalyptic number.

It is an amenable number.

43045145 is a deficient number, since it is larger than the sum of its proper divisors (18581203).

43045145 is a wasteful number, since it uses less digits than its factorization.

43045145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474 (or 450 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 43045145 is about 6560.8798952580. The cubic root of 43045145 is about 350.4623685096.

Adding to 43045145 its reverse (54154034), we get a palindrome (97199179).

Subtracting 43045145 from its reverse (54154034), we obtain a square (11108889 = 3333²).

It can be divided in two parts, 4304 and 5145, that added together give a palindrome (9449).

The spelling of 43045145 in words is "forty-three million, forty-five thousand, one hundred forty-five".