1144413285 has 16 divisors (see below), whose sum is σ = 1838925504. Its totient is φ = 607732352.

The previous prime is 1144413251. The next prime is 1144413289. The reversal of 1144413285 is 5823144411.

It is a cyclic number.

It is not a de Polignac number, because 1144413285 - 2¹¹ = 1144411237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144413289) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160227 + ... + 167216.

It is an arithmetic number, because the mean of its divisors is an integer number (114932844).

Almost surely, 2^1144413285 is an apocalyptic number.

1144413285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1144413285 is a deficient number, since it is larger than the sum of its proper divisors (694512219).

1144413285 is a wasteful number, since it uses less digits than its factorization.

1144413285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327684.

The product of its digits is 15360, while the sum is 33.

The square root of 1144413285 is about 33829.1780124791. The cubic root of 1144413285 is about 1045.9902352526.

Adding to 1144413285 its reverse (5823144411), we get a palindrome (6967557696).

The spelling of 1144413285 in words is "one billion, one hundred forty-four million, four hundred thirteen thousand, two hundred eighty-five".