135354239 has 4 divisors (see below), whose sum is σ = 138502056. Its totient is φ = 132206424.

The previous prime is 135354229. The next prime is 135354269. The reversal of 135354239 is 932453531.

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

It is a de Polignac number, because none of the positive numbers 2^k-135354239 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135354199 and 135354208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135354229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1573844 + ... + 1573929.

It is an arithmetic number, because the mean of its divisors is an integer number (34625514).

Almost surely, 2^135354239 is an apocalyptic number.

135354239 is a deficient number, since it is larger than the sum of its proper divisors (3147817).

135354239 is an equidigital number, since it uses as much as digits as its factorization.

135354239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3147816.

The product of its digits is 48600, while the sum is 35.

The square root of 135354239 is about 11634.1840710898. The cubic root of 135354239 is about 513.4410885372.

The spelling of 135354239 in words is "one hundred thirty-five million, three hundred fifty-four thousand, two hundred thirty-nine".