1144355115 has 8 divisors (see below), whose sum is σ = 1830968208. Its totient is φ = 610322720.

The previous prime is 1144355099. The next prime is 1144355131. The reversal of 1144355115 is 5115534411.

It is an interprime number because it is at equal distance from previous prime (1144355099) and next prime (1144355131).

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

It is not a de Polignac number, because 1144355115 - 2⁴ = 1144355099 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38145156 + ... + 38145185.

It is an arithmetic number, because the mean of its divisors is an integer number (228871026).

Almost surely, 2^1144355115 is an apocalyptic number.

1144355115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1144355115 is a deficient number, since it is larger than the sum of its proper divisors (686613093).

1144355115 is an equidigital number, since it uses as much as digits as its factorization.

1144355115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76290349.

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

The square root of 1144355115 is about 33828.3182407876. The cubic root of 1144355115 is about 1045.9725125517.

Adding to 1144355115 its reverse (5115534411), we get a palindrome (6259889526).

The spelling of 1144355115 in words is "one billion, one hundred forty-four million, three hundred fifty-five thousand, one hundred fifteen".