32105145 has 16 divisors (see below), whose sum is σ = 52240320. Its totient is φ = 16832064.

The previous prime is 32105141. The next prime is 32105149. The reversal of 32105145 is 54150123.

It is an interprime number because it is at equal distance from previous prime (32105141) and next prime (32105149).

It is not a de Polignac number, because 32105145 - 2² = 32105141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (32105141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17254 + ... + 19023.

It is an arithmetic number, because the mean of its divisors is an integer number (3265020).

Almost surely, 2^32105145 is an apocalyptic number.

It is an amenable number.

32105145 is a deficient number, since it is larger than the sum of its proper divisors (20135175).

32105145 is a wasteful number, since it uses less digits than its factorization.

32105145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36344.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 32105145 is about 5666.1402206440. The cubic root of 32105145 is about 317.8275537471.

Adding to 32105145 its reverse (54150123), we get a palindrome (86255268).

The spelling of 32105145 in words is "thirty-two million, one hundred five thousand, one hundred forty-five".