1148791 has 4 divisors (see below), whose sum is σ = 1312912. Its totient is φ = 984672.

The previous prime is 1148773. The next prime is 1148837. The reversal of 1148791 is 1978411.

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

It is a cyclic number.

It is not a de Polignac number, because 1148791 - 2⁷ = 1148663 is a prime.

It is a Duffinian number.

1148791 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1148701) 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, 82050 + ... + 82063.

It is an arithmetic number, because the mean of its divisors is an integer number (328228).

2^1148791 is an apocalyptic number.

1148791 is a deficient number, since it is larger than the sum of its proper divisors (164121).

1148791 is an equidigital number, since it uses as much as digits as its factorization.

1148791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164120.

The product of its digits is 2016, while the sum is 31.

The square root of 1148791 is about 1071.8166820870. The cubic root of 1148791 is about 104.7322277575.

The spelling of 1148791 in words is "one million, one hundred forty-eight thousand, seven hundred ninety-one".