230705545 has 16 divisors (see below), whose sum is σ = 324949248. Its totient is φ = 153921600.

The previous prime is 230705539. The next prime is 230705549. The reversal of 230705545 is 545507032.

It is not a de Polignac number, because 230705545 - 2³ = 230705537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230705549) 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 15 ways as a sum of consecutive naturals, for example, 87781 + ... + 90370.

It is an arithmetic number, because the mean of its divisors is an integer number (20309328).

Almost surely, 2^230705545 is an apocalyptic number.

It is an amenable number.

230705545 is a deficient number, since it is larger than the sum of its proper divisors (94243703).

230705545 is a wasteful number, since it uses less digits than its factorization.

230705545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178200.

The product of its (nonzero) digits is 21000, while the sum is 31.

The square root of 230705545 is about 15188.9942063324. The cubic root of 230705545 is about 613.3184239116.

The spelling of 230705545 in words is "two hundred thirty million, seven hundred five thousand, five hundred forty-five".