1146689 has 4 divisors (see below), whose sum is σ = 1186260. Its totient is φ = 1107120.

The previous prime is 1146679. The next prime is 1146697. The reversal of 1146689 is 9866411.

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

It can be written as a sum of positive squares in 2 ways, for example, as 211600 + 935089 = 460^2 + 967^2 .

It is a cyclic number.

It is not a de Polignac number, because 1146689 - 2¹² = 1142593 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 (1146679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19742 + ... + 19799.

It is an arithmetic number, because the mean of its divisors is an integer number (296565).

2^1146689 is an apocalyptic number.

It is an amenable number.

1146689 is a deficient number, since it is larger than the sum of its proper divisors (39571).

1146689 is an equidigital number, since it uses as much as digits as its factorization.

1146689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39570.

The product of its digits is 10368, while the sum is 35.

The square root of 1146689 is about 1070.8356549910. The cubic root of 1146689 is about 104.6683108365.

The spelling of 1146689 in words is "one million, one hundred forty-six thousand, six hundred eighty-nine".