1145244255 has 8 divisors (see below), whose sum is σ = 1832390832. Its totient is φ = 610796928.

The previous prime is 1145244251. The next prime is 1145244293. The reversal of 1145244255 is 5524425411.

It is a happy number.

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

It is not a de Polignac number, because 1145244255 - 2² = 1145244251 is a prime.

It is a super-2 number, since 2×1145244255² = 2623168807221010050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145244251) 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, 38174794 + ... + 38174823.

It is an arithmetic number, because the mean of its divisors is an integer number (229048854).

Almost surely, 2^1145244255 is an apocalyptic number.

1145244255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1145244255 is a deficient number, since it is larger than the sum of its proper divisors (687146577).

1145244255 is an equidigital number, since it uses as much as digits as its factorization.

1145244255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76349625.

The product of its digits is 32000, while the sum is 33.

The square root of 1145244255 is about 33841.4576370463. The cubic root of 1145244255 is about 1046.2433420124.

Adding to 1145244255 its reverse (5524425411), we get a palindrome (6669669666).

The spelling of 1145244255 in words is "one billion, one hundred forty-five million, two hundred forty-four thousand, two hundred fifty-five".