44145545 has 8 divisors (see below), whose sum is σ = 53461320. Its totient is φ = 34992000.

The previous prime is 44145539. The next prime is 44145557. The reversal of 44145545 is 54554144.

It can be written as a sum of positive squares in 4 ways, for example, as 15555136 + 28590409 = 3944^2 + 5347^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 44145545 - 2¹⁸ = 43883401 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39956 + ... + 41045.

It is an arithmetic number, because the mean of its divisors is an integer number (6682665).

Almost surely, 2^44145545 is an apocalyptic number.

It is an amenable number.

44145545 is a deficient number, since it is larger than the sum of its proper divisors (9315775).

44145545 is a wasteful number, since it uses less digits than its factorization.

44145545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81115.

The product of its digits is 32000, while the sum is 32.

The square root of 44145545 is about 6644.2113903758. The cubic root of 44145545 is about 353.4236661367.

Adding to 44145545 its reverse (54554144), we get a palindrome (98699689).

It can be divided in two parts, 44145 and 545, that multiplied together give a square (24059025 = 4905²).

The spelling of 44145545 in words is "forty-four million, one hundred forty-five thousand, five hundred forty-five".