135143318 has 4 divisors (see below), whose sum is σ = 202714980. Its totient is φ = 67571658.

The previous prime is 135143311. The next prime is 135143321. The reversal of 135143318 is 813341531.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135143311) by changing a digit.

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 as a sum of consecutive naturals, namely, 33785828 + ... + 33785831.

It is an arithmetic number, because the mean of its divisors is an integer number (50678745).

Almost surely, 2^135143318 is an apocalyptic number.

135143318 is a deficient number, since it is larger than the sum of its proper divisors (67571662).

135143318 is an equidigital number, since it uses as much as digits as its factorization.

135143318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67571661.

The product of its digits is 4320, while the sum is 29.

The square root of 135143318 is about 11625.1158273800. The cubic root of 135143318 is about 513.1742533811.

Adding to 135143318 its reverse (813341531), we get a palindrome (948484849).

The spelling of 135143318 in words is "one hundred thirty-five million, one hundred forty-three thousand, three hundred eighteen".