1011444481 has 8 divisors (see below), whose sum is σ = 1063016640. Its totient is φ = 960505392.

The previous prime is 1011444479. The next prime is 1011444491. The reversal of 1011444481 is 1844441101.

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

It is not a de Polignac number, because 1011444481 - 2¹ = 1011444479 is a prime.

It is a super-2 number, since 2×1011444481² = 2046039876290718722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1011444431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154990 + ... + 161383.

It is an arithmetic number, because the mean of its divisors is an integer number (132877080).

Almost surely, 2^1011444481 is an apocalyptic number.

It is an amenable number.

1011444481 is a deficient number, since it is larger than the sum of its proper divisors (51572159).

1011444481 is a wasteful number, since it uses less digits than its factorization.

1011444481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316535.

The product of its (nonzero) digits is 2048, while the sum is 28.

The square root of 1011444481 is about 31803.2149475489. The cubic root of 1011444481 is about 1003.8003659229.

Adding to 1011444481 its reverse (1844441101), we get a palindrome (2855885582).

It can be divided in two parts, 101144 and 4481, that added together give a square (105625 = 325²).

The spelling of 1011444481 in words is "one billion, eleven million, four hundred forty-four thousand, four hundred eighty-one".