1442411521 has 4 divisors (see below), whose sum is σ = 1443697072. Its totient is φ = 1441125972.

The previous prime is 1442411513. The next prime is 1442411533. The reversal of 1442411521 is 1251142441.

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.

It is a cyclic number.

It is not a de Polignac number, because 1442411521 - 2³ = 1442411513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1442411591) 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, 641091 + ... + 643336.

It is an arithmetic number, because the mean of its divisors is an integer number (360924268).

Almost surely, 2^1442411521 is an apocalyptic number.

It is an amenable number.

1442411521 is a deficient number, since it is larger than the sum of its proper divisors (1285551).

1442411521 is a wasteful number, since it uses less digits than its factorization.

1442411521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1285550.

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

The square root of 1442411521 is about 37979.0932092908. The cubic root of 1442411521 is about 1129.8732520274.

Adding to 1442411521 its reverse (1251142441), we get a palindrome (2693553962).

The spelling of 1442411521 in words is "one billion, four hundred forty-two million, four hundred eleven thousand, five hundred twenty-one".