1144321215 has 8 divisors (see below), whose sum is σ = 1830913968. Its totient is φ = 610304640.

The previous prime is 1144321177. The next prime is 1144321219. The reversal of 1144321215 is 5121234411.

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

It is not a de Polignac number, because 1144321215 - 2⁸ = 1144320959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144321219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38144026 + ... + 38144055.

It is an arithmetic number, because the mean of its divisors is an integer number (228864246).

Almost surely, 2^1144321215 is an apocalyptic number.

1144321215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1144321215 is a deficient number, since it is larger than the sum of its proper divisors (686592753).

1144321215 is an equidigital number, since it uses as much as digits as its factorization.

1144321215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76288089.

The product of its digits is 960, while the sum is 24.

The square root of 1144321215 is about 33827.8171775833. The cubic root of 1144321215 is about 1045.9621839343.

Adding to 1144321215 its reverse (5121234411), we get a palindrome (6265555626).

The spelling of 1144321215 in words is "one billion, one hundred forty-four million, three hundred twenty-one thousand, two hundred fifteen".