1143307 has 8 divisors (see below), whose sum is σ = 1301760. Its totient is φ = 993960.

The previous prime is 1143299. The next prime is 1143341. The reversal of 1143307 is 7033411.

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

It is not a de Polignac number, because 1143307 - 2³ = 1143299 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2007 + ... + 2512.

It is an arithmetic number, because the mean of its divisors is an integer number (162720).

2^1143307 is an apocalyptic number.

1143307 is a deficient number, since it is larger than the sum of its proper divisors (158453).

1143307 is a wasteful number, since it uses less digits than its factorization.

1143307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4553.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 1143307 is about 1069.2553483617. The cubic root of 1143307 is about 104.5653079555.

Adding to 1143307 its reverse (7033411), we get a palindrome (8176718).

The spelling of 1143307 in words is "one million, one hundred forty-three thousand, three hundred seven".