1143015 has 16 divisors (see below), whose sum is σ = 1843296. Its totient is φ = 604800.

The previous prime is 1143013. The next prime is 1143019. The reversal of 1143015 is 5103411.

1143015 = T₉ + T₁₀ + ... + T₁₈₉.

It is not a de Polignac number, because 1143015 - 2¹ = 1143013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

1143015 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1142985 and 1143003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2505 + ... + 2925.

It is an arithmetic number, because the mean of its divisors is an integer number (115206).

2^1143015 is an apocalyptic number.

1143015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1143015 is a deficient number, since it is larger than the sum of its proper divisors (700281).

1143015 is a wasteful number, since it uses less digits than its factorization.

1143015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 1143015 is about 1069.1187960185. The cubic root of 1143015 is about 104.5564052229.

Adding to 1143015 its reverse (5103411), we get a palindrome (6246426).

The spelling of 1143015 in words is "one million, one hundred forty-three thousand, fifteen".