232513 has 2 divisors, whose sum is σ = 232514. Its totient is φ = 232512.

The previous prime is 232499. The next prime is 232523. The reversal of 232513 is 315232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 166464 + 66049 = 408^2 + 257^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-232513 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (232523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116256 + 116257.

It is an arithmetic number, because the mean of its divisors is an integer number (116257).

2²³²⁵¹³ is an apocalyptic number.

It is an amenable number.

232513 is a deficient number, since it is larger than the sum of its proper divisors (1).

232513 is an equidigital number, since it uses as much as digits as its factorization.

232513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 180, while the sum is 16.

The square root of 232513 is about 482.1960182332. The cubic root of 232513 is about 61.4915933604.

Adding to 232513 its reverse (315232), we get a palindrome (547745).

The spelling of 232513 in words is "two hundred thirty-two thousand, five hundred thirteen".