232400513 has 4 divisors (see below), whose sum is σ = 232431108. Its totient is φ = 232369920.

The previous prime is 232400503. The next prime is 232400543. The reversal of 232400513 is 315004232.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 17572864 + 214827649 = 4192^2 + 14657^2 .

It is a cyclic number.

It is not a de Polignac number, because 232400513 - 2¹⁴ = 232384129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (232400503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5753 + ... + 22313.

It is an arithmetic number, because the mean of its divisors is an integer number (58107777).

Almost surely, 2^232400513 is an apocalyptic number.

It is an amenable number.

232400513 is a deficient number, since it is larger than the sum of its proper divisors (30595).

232400513 is a wasteful number, since it uses less digits than its factorization.

232400513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30594.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 232400513 is about 15244.6880256698. The cubic root of 232400513 is about 614.8167546241.

Adding to 232400513 its reverse (315004232), we get a palindrome (547404745).

The spelling of 232400513 in words is "two hundred thirty-two million, four hundred thousand, five hundred thirteen".