135243152 has 30 divisors (see below), whose sum is σ = 288024534. Its totient is φ = 61473280.

The previous prime is 135243149. The next prime is 135243187. The reversal of 135243152 is 251342531.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 107827456 + 27415696 = 10384^2 + 5236^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32993 + ... + 36864.

Almost surely, 2^135243152 is an apocalyptic number.

It is an amenable number.

135243152 is an abundant number, since it is smaller than the sum of its proper divisors (152781382).

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

135243152 is a wasteful number, since it uses less digits than its factorization.

135243152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69887 (or 69870 counting only the distinct ones).

The product of its digits is 3600, while the sum is 26.

The square root of 135243152 is about 11629.4089273703. The cubic root of 135243152 is about 513.3005874803.

Adding to 135243152 its reverse (251342531), we get a palindrome (386585683).

The spelling of 135243152 in words is "one hundred thirty-five million, two hundred forty-three thousand, one hundred fifty-two".