235613 has 8 divisors (see below), whose sum is σ = 272832. Its totient is φ = 199296.

The previous prime is 235607. The next prime is 235621. The reversal of 235613 is 316532.

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 235613 - 2¹⁰ = 234589 is a prime.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (235663) 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, 506 + ... + 852.

It is an arithmetic number, because the mean of its divisors is an integer number (34104).

2²³⁵⁶¹³ is an apocalyptic number.

It is an amenable number.

235613 is a deficient number, since it is larger than the sum of its proper divisors (37219).

235613 is an equidigital number, since it uses as much as digits as its factorization.

235613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451.

The product of its digits is 540, while the sum is 20.

The square root of 235613 is about 485.3998351874. The cubic root of 235613 is about 61.7636684544.

It can be divided in two parts, 2356 and 13, that multiplied together give a triangular number (30628 = T₂₄₇).

The spelling of 235613 in words is "two hundred thirty-five thousand, six hundred thirteen".