1230549 has 8 divisors (see below), whose sum is σ = 1650912. Its totient is φ = 815280.

The previous prime is 1230547. The next prime is 1230571. The reversal of 1230549 is 9450321.

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

It is not a de Polignac number, because 1230549 - 2¹ = 1230547 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

1230549 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230547) 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 7 ways as a sum of consecutive naturals, for example, 667 + ... + 1704.

It is an arithmetic number, because the mean of its divisors is an integer number (206364).

2^1230549 is an apocalyptic number.

It is an amenable number.

1230549 is a deficient number, since it is larger than the sum of its proper divisors (420363).

1230549 is a wasteful number, since it uses less digits than its factorization.

1230549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2547.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 1230549 is about 1109.3011313435. The cubic root of 1230549 is about 107.1600655534.

The spelling of 1230549 in words is "one million, two hundred thirty thousand, five hundred forty-nine".