1444135345 has 16 divisors (see below), whose sum is σ = 1786287888. Its totient is φ = 1119985920.

The previous prime is 1444135327. The next prime is 1444135351. The reversal of 1444135345 is 5435314441.

It can be written as a sum of positive squares in 8 ways, for example, as 69505569 + 1374629776 = 8337^2 + 37076^2 .

It is not a de Polignac number, because 1444135345 - 2¹⁵ = 1444102577 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1444135345.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37155 + ... + 65335.

It is an arithmetic number, because the mean of its divisors is an integer number (111642993).

Almost surely, 2^1444135345 is an apocalyptic number.

It is an amenable number.

1444135345 is a deficient number, since it is larger than the sum of its proper divisors (342152543).

1444135345 is a wasteful number, since it uses less digits than its factorization.

1444135345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28500.

The product of its digits is 57600, while the sum is 34.

The square root of 1444135345 is about 38001.7808135356. The cubic root of 1444135345 is about 1130.3231761571.

Adding to 1444135345 its reverse (5435314441), we get a palindrome (6879449786).

The spelling of 1444135345 in words is "one billion, four hundred forty-four million, one hundred thirty-five thousand, three hundred forty-five".