1142763 has 8 divisors (see below), whose sum is σ = 1529808. Its totient is φ = 758784.

The previous prime is 1142759. The next prime is 1142773. The reversal of 1142763 is 3672411.

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

It is not a de Polignac number, because 1142763 - 2² = 1142759 is a prime.

1142763 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1142773) 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, 331 + ... + 1547.

It is an arithmetic number, because the mean of its divisors is an integer number (191226).

2^1142763 is an apocalyptic number.

1142763 is a deficient number, since it is larger than the sum of its proper divisors (387045).

1142763 is a wasteful number, since it uses less digits than its factorization.

1142763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1533.

The product of its digits is 1008, while the sum is 24.

The square root of 1142763 is about 1069.0009354533. Note that the first 3 decimals coincide. The cubic root of 1142763 is about 104.5487208237.

The spelling of 1142763 in words is "one million, one hundred forty-two thousand, seven hundred sixty-three".