1442121506 has 8 divisors (see below), whose sum is σ = 2472208320. Its totient is φ = 618052068.

The previous prime is 1442121503. The next prime is 1442121511. The reversal of 1442121506 is 6051212441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1442121503) 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, 51504326 + ... + 51504353.

It is an arithmetic number, because the mean of its divisors is an integer number (309026040).

Almost surely, 2^1442121506 is an apocalyptic number.

1442121506 is a deficient number, since it is larger than the sum of its proper divisors (1030086814).

1442121506 is a wasteful number, since it uses less digits than its factorization.

1442121506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103008688.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 1442121506 is about 37975.2749298804. The cubic root of 1442121506 is about 1129.7975218699.

Adding to 1442121506 its reverse (6051212441), we get a palindrome (7493333947).

The spelling of 1442121506 in words is "one billion, four hundred forty-two million, one hundred twenty-one thousand, five hundred six".