44142545 has 4 divisors (see below), whose sum is σ = 52971060. Its totient is φ = 35314032.

The previous prime is 44142521. The next prime is 44142547. The reversal of 44142545 is 54524144.

44142545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23775376 + 20367169 = 4876^2 + 4513^2 .

It is a cyclic number.

It is not a de Polignac number, because 44142545 - 2⁸ = 44142289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (44142547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4414250 + ... + 4414259.

It is an arithmetic number, because the mean of its divisors is an integer number (13242765).

Almost surely, 2^44142545 is an apocalyptic number.

It is an amenable number.

44142545 is a deficient number, since it is larger than the sum of its proper divisors (8828515).

44142545 is an equidigital number, since it uses as much as digits as its factorization.

44142545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8828514.

The product of its digits is 12800, while the sum is 29.

The square root of 44142545 is about 6643.9856261133. The cubic root of 44142545 is about 353.4156600814.

Adding to 44142545 its reverse (54524144), we get a palindrome (98666689).

The spelling of 44142545 in words is "forty-four million, one hundred forty-two thousand, five hundred forty-five".