44172545 has 16 divisors (see below), whose sum is σ = 56567808. Its totient is φ = 32997120.

The previous prime is 44172529. The next prime is 44172553. The reversal of 44172545 is 54527144.

It is not a de Polignac number, because 44172545 - 2⁴ = 44172529 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9152 + ... + 13118.

It is an arithmetic number, because the mean of its divisors is an integer number (3535488).

Almost surely, 2^44172545 is an apocalyptic number.

It is an amenable number.

44172545 is a deficient number, since it is larger than the sum of its proper divisors (12395263).

44172545 is a wasteful number, since it uses less digits than its factorization.

44172545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4120.

The product of its digits is 22400, while the sum is 32.

The square root of 44172545 is about 6646.2429236374. The cubic root of 44172545 is about 353.4957043172.

Adding to 44172545 its reverse (54527144), we get a palindrome (98699689).

The spelling of 44172545 in words is "forty-four million, one hundred seventy-two thousand, five hundred forty-five".