1140307 has 4 divisors (see below), whose sum is σ = 1303216. Its totient is φ = 977400.

The previous prime is 1140289. The next prime is 1140311. The reversal of 1140307 is 7030411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1140307 is a prime.

It is an Ulam number.

It is a Duffinian number.

1140307 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1146307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81444 + ... + 81457.

It is an arithmetic number, because the mean of its divisors is an integer number (325804).

2^1140307 is an apocalyptic number.

1140307 is a deficient number, since it is larger than the sum of its proper divisors (162909).

1140307 is an equidigital number, since it uses as much as digits as its factorization.

1140307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162908.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 1140307 is about 1067.8515814475. The cubic root of 1140307 is about 104.4737691998.

Adding to 1140307 its reverse (7030411), we get a palindrome (8170718).

The spelling of 1140307 in words is "one million, one hundred forty thousand, three hundred seven".