1442265109 has 4 divisors (see below), whose sum is σ = 1442595616. Its totient is φ = 1441934604.

The previous prime is 1442265101. The next prime is 1442265127. The reversal of 1442265109 is 9015622441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9015622441 = 7 ⋅1287946063.

It is a cyclic number.

It is not a de Polignac number, because 1442265109 - 2³ = 1442265101 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 (1442265101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158619 + ... + 167464.

It is an arithmetic number, because the mean of its divisors is an integer number (360648904).

Almost surely, 2^1442265109 is an apocalyptic number.

It is an amenable number.

1442265109 is a deficient number, since it is larger than the sum of its proper divisors (330507).

1442265109 is an equidigital number, since it uses as much as digits as its factorization.

1442265109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330506.

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

The square root of 1442265109 is about 37977.1656262023. The cubic root of 1442265109 is about 1129.8350214676.

The spelling of 1442265109 in words is "one billion, four hundred forty-two million, two hundred sixty-five thousand, one hundred nine".