43006145 has 32 divisors (see below), whose sum is σ = 65587200. Its totient is φ = 26334720.

The previous prime is 43006127. The next prime is 43006147. The reversal of 43006145 is 54160034.

43006145 = 253² + 254² + ... + 525².

It is a happy number.

It is not a de Polignac number, because 43006145 - 2¹² = 43002049 is a prime.

It is a super-2 number, since 2×43006145² = 3699057015522050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 43006145.

It is not an unprimeable number, because it can be changed into a prime (43006147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12581 + ... + 15629.

It is an arithmetic number, because the mean of its divisors is an integer number (2049600).

Almost surely, 2^43006145 is an apocalyptic number.

It is an amenable number.

43006145 is a deficient number, since it is larger than the sum of its proper divisors (22581055).

43006145 is a wasteful number, since it uses less digits than its factorization.

43006145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3105.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 43006145 is about 6557.9070594207. The cubic root of 43006145 is about 350.3564939113.

Adding to 43006145 its reverse (54160034), we get a palindrome (97166179).

The spelling of 43006145 in words is "forty-three million, six thousand, one hundred forty-five".