1143315 has 24 divisors (see below), whose sum is σ = 2057328. Its totient is φ = 609120.

The previous prime is 1143299. The next prime is 1143341. The reversal of 1143315 is 5133411.

It is not a de Polignac number, because 1143315 - 2⁴ = 1143299 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 745 + ... + 1685.

It is an arithmetic number, because the mean of its divisors is an integer number (85722).

2^1143315 is an apocalyptic number.

1143315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1143315 is a deficient number, since it is larger than the sum of its proper divisors (914013).

1143315 is an frugal number, since it uses more digits than its factorization.

1143315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961 (or 949 counting only the distinct ones).

The product of its digits is 180, while the sum is 18.

The square root of 1143315 is about 1069.2590892763. The cubic root of 1143315 is about 104.5655518447.

Adding to 1143315 its reverse (5133411), we get a palindrome (6276726).

The spelling of 1143315 in words is "one million, one hundred forty-three thousand, three hundred fifteen".