1146389 has 4 divisors (see below), whose sum is σ = 1196256. Its totient is φ = 1096524.

The previous prime is 1146367. The next prime is 1146391. The reversal of 1146389 is 9836411.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1146389 - 2⁸ = 1146133 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 (1146329) 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, 24899 + ... + 24944.

It is an arithmetic number, because the mean of its divisors is an integer number (299064).

2^1146389 is an apocalyptic number.

It is an amenable number.

1146389 is a deficient number, since it is larger than the sum of its proper divisors (49867).

1146389 is an equidigital number, since it uses as much as digits as its factorization.

1146389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49866.

The product of its digits is 5184, while the sum is 32.

The square root of 1146389 is about 1070.6955683106. The cubic root of 1146389 is about 104.6591821677.

The spelling of 1146389 in words is "one million, one hundred forty-six thousand, three hundred eighty-nine".