1143807 has 24 divisors (see below), whose sum is σ = 1838592. Its totient is φ = 630000.

The previous prime is 1143803. The next prime is 1143809. The reversal of 1143807 is 7083411.

It is not a de Polignac number, because 1143807 - 2² = 1143803 is a prime.

1143807 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143803) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4432 + ... + 4682.

It is an arithmetic number, because the mean of its divisors is an integer number (76608).

2^1143807 is an apocalyptic number.

1143807 is a deficient number, since it is larger than the sum of its proper divisors (694785).

1143807 is a wasteful number, since it uses less digits than its factorization.

1143807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299 (or 292 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 1143807 is about 1069.4891303795. The cubic root of 1143807 is about 104.5805488413.

The spelling of 1143807 in words is "one million, one hundred forty-three thousand, eight hundred seven".