1442247355 has 4 divisors (see below), whose sum is σ = 1730696832. Its totient is φ = 1153797880.

The previous prime is 1442247337. The next prime is 1442247409. The reversal of 1442247355 is 5537422441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5537422441 = 149 ⋅37163909.

It is not a de Polignac number, because 1442247355 - 2⁹ = 1442246843 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144224731 + ... + 144224740.

It is an arithmetic number, because the mean of its divisors is an integer number (432674208).

Almost surely, 2^1442247355 is an apocalyptic number.

1442247355 is a deficient number, since it is larger than the sum of its proper divisors (288449477).

1442247355 is an equidigital number, since it uses as much as digits as its factorization.

1442247355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288449476.

The product of its digits is 134400, while the sum is 37.

The square root of 1442247355 is about 37976.9318797609. The cubic root of 1442247355 is about 1129.8303854329.

Adding to 1442247355 its reverse (5537422441), we get a palindrome (6979669796).

The spelling of 1442247355 in words is "one billion, four hundred forty-two million, two hundred forty-seven thousand, three hundred fifty-five".