1144511355 has 16 divisors (see below), whose sum is σ = 1972081440. Its totient is φ = 563451648.

The previous prime is 1144511293. The next prime is 1144511359. The reversal of 1144511355 is 5531154411.

It is not a de Polignac number, because 1144511355 - 2⁸ = 1144511099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1144511359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2934450 + ... + 2934839.

It is an arithmetic number, because the mean of its divisors is an integer number (123255090).

Almost surely, 2^1144511355 is an apocalyptic number.

1144511355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1144511355 is a deficient number, since it is larger than the sum of its proper divisors (827570085).

1144511355 is a wasteful number, since it uses less digits than its factorization.

1144511355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5869310.

The product of its digits is 6000, while the sum is 30.

The square root of 1144511355 is about 33830.6274697943. The cubic root of 1144511355 is about 1046.0201129589.

Adding to 1144511355 its reverse (5531154411), we get a palindrome (6675665766).

The spelling of 1144511355 in words is "one billion, one hundred forty-four million, five hundred eleven thousand, three hundred fifty-five".