239936135 has 4 divisors (see below), whose sum is σ = 287923368. Its totient is φ = 191948904.

The previous prime is 239936117. The next prime is 239936143. The reversal of 239936135 is 531639932.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 239936135 - 2¹⁴ = 239919751 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 239936092 and 239936101.

It is a congruent number.

It is an unprimeable number.

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, 23993609 + ... + 23993618.

It is an arithmetic number, because the mean of its divisors is an integer number (71980842).

Almost surely, 2^239936135 is an apocalyptic number.

239936135 is a deficient number, since it is larger than the sum of its proper divisors (47987233).

239936135 is an equidigital number, since it uses as much as digits as its factorization.

239936135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47987232.

The product of its digits is 131220, while the sum is 41.

The square root of 239936135 is about 15489.8720136740. The cubic root of 239936135 is about 621.3913731328.

The spelling of 239936135 in words is "two hundred thirty-nine million, nine hundred thirty-six thousand, one hundred thirty-five".