1142791 has 8 divisors (see below), whose sum is σ = 1303344. Its totient is φ = 992640.

The previous prime is 1142789. The next prime is 1142809. The reversal of 1142791 is 1972411.

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

It is a cyclic number.

It is not a de Polignac number, because 1142791 - 2¹ = 1142789 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 (1142191) 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, 2365 + ... + 2806.

It is an arithmetic number, because the mean of its divisors is an integer number (162918).

2^1142791 is an apocalyptic number.

1142791 is a deficient number, since it is larger than the sum of its proper divisors (160553).

1142791 is a wasteful number, since it uses less digits than its factorization.

1142791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5201.

The product of its digits is 504, while the sum is 25.

The square root of 1142791 is about 1069.0140317133. The cubic root of 1142791 is about 104.5495747016.

The spelling of 1142791 in words is "one million, one hundred forty-two thousand, seven hundred ninety-one".