123535 has 8 divisors (see below), whose sum is σ = 153216. Its totient is φ = 95520.

The previous prime is 123527. The next prime is 123547. The reversal of 123535 is 535321.

123535 is nontrivially palindromic in base 2.

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

It is not a de Polignac number, because 123535 - 2³ = 123527 is a prime.

It is a Duffinian number.

123535 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244 + ... + 553.

It is an arithmetic number, because the mean of its divisors is an integer number (19152).

2¹²³⁵³⁵ is an apocalyptic number.

123535 is a deficient number, since it is larger than the sum of its proper divisors (29681).

123535 is an equidigital number, since it uses as much as digits as its factorization.

123535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833.

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

The square root of 123535 is about 351.4754614479. The cubic root of 123535 is about 49.8038985566.

Adding to 123535 its reverse (535321), we get a palindrome (658856).

The spelling of 123535 in words is "one hundred twenty-three thousand, five hundred thirty-five".