1442347051 has 4 divisors (see below), whose sum is σ = 1442425600. Its totient is φ = 1442268504.

The previous prime is 1442347021. The next prime is 1442347069. The reversal of 1442347051 is 1507432441.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1507432441 = 29 ⋅51980429.

It is a cyclic number.

It is not a de Polignac number, because 1442347051 - 2⁷ = 1442346923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1442347021) 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, 4630 + ... + 53908.

It is an arithmetic number, because the mean of its divisors is an integer number (360606400).

Almost surely, 2^1442347051 is an apocalyptic number.

1442347051 is a deficient number, since it is larger than the sum of its proper divisors (78549).

1442347051 is an equidigital number, since it uses as much as digits as its factorization.

1442347051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78548.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 1442347051 is about 37978.2444433652. The cubic root of 1442347051 is about 1129.8564181783.

Adding to 1442347051 its reverse (1507432441), we get a palindrome (2949779492).

The spelling of 1442347051 in words is "one billion, four hundred forty-two million, three hundred forty-seven thousand, fifty-one".