1144355205 has 16 divisors (see below), whose sum is σ = 2092535424. Its totient is φ = 523133760.

The previous prime is 1144355189. The next prime is 1144355239. The reversal of 1144355205 is 5025534411.

It is not a de Polignac number, because 1144355205 - 2⁴ = 1144355189 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5449206 + ... + 5449415.

It is an arithmetic number, because the mean of its divisors is an integer number (130783464).

Almost surely, 2^1144355205 is an apocalyptic number.

1144355205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1144355205 is a deficient number, since it is larger than the sum of its proper divisors (948180219).

1144355205 is a wasteful number, since it uses less digits than its factorization.

1144355205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10898636.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 1144355205 is about 33828.3195710340. The cubic root of 1144355205 is about 1045.9725399725.

Adding to 1144355205 its reverse (5025534411), we get a palindrome (6169889616).

The spelling of 1144355205 in words is "one billion, one hundred forty-four million, three hundred fifty-five thousand, two hundred five".