230805549 has 24 divisors (see below), whose sum is σ = 380153592. Its totient is φ = 133678080.

The previous prime is 230805539. The next prime is 230805563. The reversal of 230805549 is 945508032.

230805549 is a `hidden beast` number, since 2 + 30 + 80 + 5 + 549 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 90383049 + 140422500 = 9507^2 + 11850^2 .

It is not a de Polignac number, because 230805549 - 2¹¹ = 230803501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230805539) 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 23 ways as a sum of consecutive naturals, for example, 56032 + ... + 60009.

It is an arithmetic number, because the mean of its divisors is an integer number (15839733).

Almost surely, 2^230805549 is an apocalyptic number.

It is an amenable number.

230805549 is a deficient number, since it is larger than the sum of its proper divisors (149348043).

230805549 is a wasteful number, since it uses less digits than its factorization.

230805549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116077 (or 116074 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 230805549 is about 15192.2858385432. The cubic root of 230805549 is about 613.4070295490.

The spelling of 230805549 in words is "two hundred thirty million, eight hundred five thousand, five hundred forty-nine".