230005145 has 4 divisors (see below), whose sum is σ = 276006180. Its totient is φ = 184004112.

The previous prime is 230005117. The next prime is 230005147. The reversal of 230005145 is 541500032.

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 112954384 + 117050761 = 10628^2 + 10819^2 .

It is a cyclic number.

It is not a de Polignac number, because 230005145 - 2⁸ = 230004889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (230005147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23000510 + ... + 23000519.

It is an arithmetic number, because the mean of its divisors is an integer number (69001545).

Almost surely, 2^230005145 is an apocalyptic number.

It is an amenable number.

230005145 is a deficient number, since it is larger than the sum of its proper divisors (46001035).

230005145 is an equidigital number, since it uses as much as digits as its factorization.

230005145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46001034.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 230005145 is about 15165.9205127813. The cubic root of 230005145 is about 612.6971360442.

Adding to 230005145 its reverse (541500032), we get a palindrome (771505177).

The spelling of 230005145 in words is "two hundred thirty million, five thousand, one hundred forty-five".