230511445 has 4 divisors (see below), whose sum is σ = 276613740. Its totient is φ = 184409152.

The previous prime is 230511427. The next prime is 230511467. The reversal of 230511445 is 544115032.

It is a happy number.

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 29495761 + 201015684 = 5431^2 + 14178^2 .

It is a cyclic number.

It is not a de Polignac number, because 230511445 - 2⁹ = 230510933 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23051140 + ... + 23051149.

It is an arithmetic number, because the mean of its divisors is an integer number (69153435).

Almost surely, 2^230511445 is an apocalyptic number.

It is an amenable number.

230511445 is a deficient number, since it is larger than the sum of its proper divisors (46102295).

230511445 is an equidigital number, since it uses as much as digits as its factorization.

230511445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46102294.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 230511445 is about 15182.6033670119. The cubic root of 230511445 is about 613.1463741426.

Adding to 230511445 its reverse (544115032), we get a palindrome (774626477).

The spelling of 230511445 in words is "two hundred thirty million, five hundred eleven thousand, four hundred forty-five".