135243455 has 8 divisors (see below), whose sum is σ = 163117152. Its totient is φ = 107644768.

The previous prime is 135243431. The next prime is 135243457. The reversal of 135243455 is 554342531.

It is a happy number.

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 135243455 - 2¹⁰ = 135242431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135243457) 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, 67667 + ... + 69636.

It is an arithmetic number, because the mean of its divisors is an integer number (20389644).

Almost surely, 2^135243455 is an apocalyptic number.

135243455 is a deficient number, since it is larger than the sum of its proper divisors (27873697).

135243455 is a wasteful number, since it uses less digits than its factorization.

135243455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137505.

The product of its digits is 36000, while the sum is 32.

The square root of 135243455 is about 11629.4219546803. The cubic root of 135243455 is about 513.3009708145.

Adding to 135243455 its reverse (554342531), we get a palindrome (689585986).

The spelling of 135243455 in words is "one hundred thirty-five million, two hundred forty-three thousand, four hundred fifty-five".