1144261485 has 48 divisors (see below), whose sum is σ = 2090699520. Its totient is φ = 600229440.

The previous prime is 1144261471. The next prime is 1144261487. The reversal of 1144261485 is 5841624411.

1144261485 is a `hidden beast` number, since 114 + 4 + 2 + 61 + 485 = 666.

It is not a de Polignac number, because 1144261485 - 2⁷ = 1144261357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144261487) 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 47 ways as a sum of consecutive naturals, for example, 66396 + ... + 81834.

It is an arithmetic number, because the mean of its divisors is an integer number (43556240).

Almost surely, 2^1144261485 is an apocalyptic number.

1144261485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1144261485 is a deficient number, since it is larger than the sum of its proper divisors (946438035).

1144261485 is an equidigital number, since it uses as much as digits as its factorization.

1144261485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15520 (or 15508 counting only the distinct ones).

The product of its digits is 30720, while the sum is 36.

The square root of 1144261485 is about 33826.9343127633. The cubic root of 1144261485 is about 1045.9439849626.

Adding to 1144261485 its reverse (5841624411), we get a palindrome (6985885896).

It can be divided in two parts, 11442 and 61485, that added together give a palindrome (72927).

The spelling of 1144261485 in words is "one billion, one hundred forty-four million, two hundred sixty-one thousand, four hundred eighty-five".