235513 has 2 divisors, whose sum is σ = 235514. Its totient is φ = 235512.

The previous prime is 235493. The next prime is 235519. The reversal of 235513 is 315532.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 218089 + 17424 = 467^2 + 132^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-235513 is a prime.

It is not a weakly prime, because it can be changed into another prime (235519) 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 as a sum of consecutive naturals, namely, 117756 + 117757.

It is an arithmetic number, because the mean of its divisors is an integer number (117757).

2²³⁵⁵¹³ is an apocalyptic number.

It is an amenable number.

235513 is a deficient number, since it is larger than the sum of its proper divisors (1).

235513 is an equidigital number, since it uses as much as digits as its factorization.

235513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 450, while the sum is 19.

The square root of 235513 is about 485.2968163918. The cubic root of 235513 is about 61.7549292071.

Adding to 235513 its sum of digits (19), we get a palindrome (235532).

The spelling of 235513 in words is "two hundred thirty-five thousand, five hundred thirteen".