1442145913 has 4 divisors (see below), whose sum is σ = 1553080228. Its totient is φ = 1331211600.

The previous prime is 1442145907. The next prime is 1442145941. The reversal of 1442145913 is 3195412441.

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 362826304 + 1079319609 = 19048^2 + 32853^2 .

It is a cyclic number.

It is not a de Polignac number, because 1442145913 - 2⁹ = 1442145401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1442145013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55467138 + ... + 55467163.

It is an arithmetic number, because the mean of its divisors is an integer number (388270057).

Almost surely, 2^1442145913 is an apocalyptic number.

1442145913 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1442145913 is a deficient number, since it is larger than the sum of its proper divisors (110934315).

1442145913 is a wasteful number, since it uses less digits than its factorization.

1442145913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110934314.

The product of its digits is 17280, while the sum is 34.

The square root of 1442145913 is about 37975.5962823495. The cubic root of 1442145913 is about 1129.8038955383.

The spelling of 1442145913 in words is "one billion, four hundred forty-two million, one hundred forty-five thousand, nine hundred thirteen".