230523845 has 8 divisors (see below), whose sum is σ = 276733176. Its totient is φ = 184349376.

The previous prime is 230523841. The next prime is 230523847. The reversal of 230523845 is 548325032.

It can be written as a sum of positive squares in 4 ways, for example, as 138344644 + 92179201 = 11762^2 + 9601^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 230523845 - 2² = 230523841 is a prime.

It is a super-2 number, since 2×230523845² = 106282486227168050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230523841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9179 + ... + 23351.

It is an arithmetic number, because the mean of its divisors is an integer number (34591647).

Almost surely, 2^230523845 is an apocalyptic number.

It is an amenable number.

230523845 is a deficient number, since it is larger than the sum of its proper divisors (46209331).

230523845 is a wasteful number, since it uses less digits than its factorization.

230523845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17431.

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 230523845 is about 15183.0117236338. The cubic root of 230523845 is about 613.1573683598.

Adding to 230523845 its reverse (548325032), we get a palindrome (778848877).

The spelling of 230523845 in words is "two hundred thirty million, five hundred twenty-three thousand, eight hundred forty-five".