1442245111 has 4 divisors (see below), whose sum is σ = 1444303224. Its totient is φ = 1440187000.

The previous prime is 1442245109. The next prime is 1442245117. The reversal of 1442245111 is 1115422441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1115422441 = 7 ⋅159346063.

It is a cyclic number.

It is not a de Polignac number, because 1442245111 - 2¹ = 1442245109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442245117) 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, 1028005 + ... + 1029406.

It is an arithmetic number, because the mean of its divisors is an integer number (361075806).

Almost surely, 2^1442245111 is an apocalyptic number.

1442245111 is a deficient number, since it is larger than the sum of its proper divisors (2058113).

1442245111 is an equidigital number, since it uses as much as digits as its factorization.

1442245111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2058112.

The product of its digits is 1280, while the sum is 25.

The square root of 1442245111 is about 37976.9023354986. The cubic root of 1442245111 is about 1129.8297994629.

Adding to 1442245111 its reverse (1115422441), we get a palindrome (2557667552).

The spelling of 1442245111 in words is "one billion, four hundred forty-two million, two hundred forty-five thousand, one hundred eleven".