1421075441 has 8 divisors (see below), whose sum is σ = 1505493864. Its totient is φ = 1336748800.

The previous prime is 1421075399. The next prime is 1421075473. The reversal of 1421075441 is 1445701241.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 112444816 + 1308630625 = 10604^2 + 36175^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1421075441 - 2⁶ = 1421075377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1421075141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10331 + ... + 54303.

It is an arithmetic number, because the mean of its divisors is an integer number (188186733).

Almost surely, 2^1421075441 is an apocalyptic number.

It is an amenable number.

1421075441 is a deficient number, since it is larger than the sum of its proper divisors (84418423).

1421075441 is a wasteful number, since it uses less digits than its factorization.

1421075441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45891.

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 1421075441 is about 37697.1542825185. The cubic root of 1421075441 is about 1124.2745455599.

Adding to 1421075441 its reverse (1445701241), we get a palindrome (2866776682).

The spelling of 1421075441 in words is "one billion, four hundred twenty-one million, seventy-five thousand, four hundred forty-one".