130444441 has 4 divisors (see below), whose sum is σ = 130794532. Its totient is φ = 130094352.

The previous prime is 130444439. The next prime is 130444459. The reversal of 130444441 is 144444031.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 144444031 = 2357 ⋅61283.

It can be written as a sum of positive squares in 2 ways, for example, as 26832400 + 103612041 = 5180^2 + 10179^2 .

It is a cyclic number.

It is not a de Polignac number, because 130444441 - 2¹ = 130444439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130444421) 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, 174486 + ... + 175231.

It is an arithmetic number, because the mean of its divisors is an integer number (32698633).

Almost surely, 2^130444441 is an apocalyptic number.

It is an amenable number.

130444441 is a deficient number, since it is larger than the sum of its proper divisors (350091).

130444441 is an equidigital number, since it uses as much as digits as its factorization.

130444441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350090.

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 130444441 is about 11421.2276485499. The cubic root of 130444441 is about 507.1563396081.

Adding to 130444441 its reverse (144444031), we get a palindrome (274888472).

The spelling of 130444441 in words is "one hundred thirty million, four hundred forty-four thousand, four hundred forty-one".