230310945 has 20 divisors (see below), whose sum is σ = 412854420. Its totient is φ = 122832288.

The previous prime is 230310943. The next prime is 230310979. The reversal of 230310945 is 549013032.

It can be written as a sum of positive squares in 2 ways, for example, as 141348321 + 88962624 = 11889^2 + 9432^2 .

It is not a de Polignac number, because 230310945 - 2¹ = 230310943 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (230310943) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 283930 + ... + 284739.

It is an arithmetic number, because the mean of its divisors is an integer number (20642721).

Almost surely, 2^230310945 is an apocalyptic number.

It is an amenable number.

230310945 is a deficient number, since it is larger than the sum of its proper divisors (182543475).

230310945 is an equidigital number, since it uses as much as digits as its factorization.

230310945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568686 (or 568677 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 230310945 is about 15175.9989786505. The cubic root of 230310945 is about 612.9685499878.

Adding to 230310945 its reverse (549013032), we get a palindrome (779323977).

The spelling of 230310945 in words is "two hundred thirty million, three hundred ten thousand, nine hundred forty-five".