135143340 has 24 divisors (see below), whose sum is σ = 378401520. Its totient is φ = 36038208.

The previous prime is 135143329. The next prime is 135143347. The reversal of 135143340 is 43341531.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 135143340.

It is not an unprimeable number, because it can be changed into a prime (135143347) 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 in 7 ways as a sum of consecutive naturals, for example, 1126135 + ... + 1126254.

It is an arithmetic number, because the mean of its divisors is an integer number (15766730).

Almost surely, 2^135143340 is an apocalyptic number.

135143340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135143340 is an abundant number, since it is smaller than the sum of its proper divisors (243258180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135143340 is a wasteful number, since it uses less digits than its factorization.

135143340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2252401 (or 2252399 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 135143340 is about 11625.1167736071. The cubic root of 135143340 is about 513.1742812277.

Adding to 135143340 its reverse (43341531), we get a palindrome (178484871).

The spelling of 135143340 in words is "one hundred thirty-five million, one hundred forty-three thousand, three hundred forty".