1441561001 has 4 divisors (see below), whose sum is σ = 1454318292. Its totient is φ = 1428803712.

The previous prime is 1441560997. The next prime is 1441561007. The reversal of 1441561001 is 1001651441.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 151314601 + 1290246400 = 12301^2 + 35920^2 .

It is a cyclic number.

It is not a de Polignac number, because 1441561001 - 2² = 1441560997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1441561007) 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, 6378476 + ... + 6378701.

It is an arithmetic number, because the mean of its divisors is an integer number (363579573).

Almost surely, 2^1441561001 is an apocalyptic number.

It is an amenable number.

1441561001 is a deficient number, since it is larger than the sum of its proper divisors (12757291).

1441561001 is a wasteful number, since it uses less digits than its factorization.

1441561001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12757290.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 1441561001 is about 37967.8943450911. The cubic root of 1441561001 is about 1129.6511312417.

The spelling of 1441561001 in words is "one billion, four hundred forty-one million, five hundred sixty-one thousand, one".