1442075311 has 4 divisors (see below), whose sum is σ = 1442726824. Its totient is φ = 1441423800.

The previous prime is 1442075309. The next prime is 1442075317. The reversal of 1442075311 is 1135702441.

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

It is a cyclic number.

It is not a de Polignac number, because 1442075311 - 2¹ = 1442075309 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 1442075311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442075317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 322425 + ... + 326866.

It is an arithmetic number, because the mean of its divisors is an integer number (360681706).

Almost surely, 2^1442075311 is an apocalyptic number.

1442075311 is a deficient number, since it is larger than the sum of its proper divisors (651513).

1442075311 is an equidigital number, since it uses as much as digits as its factorization.

1442075311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651512.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 1442075311 is about 37974.6667003148. Note that the first 3 decimals coincide. The cubic root of 1442075311 is about 1129.7854582647.

Adding to 1442075311 its reverse (1135702441), we get a palindrome (2577777752).

The spelling of 1442075311 in words is "one billion, four hundred forty-two million, seventy-five thousand, three hundred eleven".