1145779 has 8 divisors (see below), whose sum is σ = 1190160. Its totient is φ = 1102176.

The previous prime is 1145773. The next prime is 1145789. The reversal of 1145779 is 9775411.

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 1145779 - 2⁵ = 1145747 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1145773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6312 + ... + 6490.

It is an arithmetic number, because the mean of its divisors is an integer number (148770).

2^1145779 is an apocalyptic number.

1145779 is a deficient number, since it is larger than the sum of its proper divisors (44381).

1145779 is a wasteful number, since it uses less digits than its factorization.

1145779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389.

The product of its digits is 8820, while the sum is 34.

The square root of 1145779 is about 1070.4106688556. The cubic root of 1145779 is about 104.6406156288.

The spelling of 1145779 in words is "one million, one hundred forty-five thousand, seven hundred seventy-nine".