135243452 has 36 divisors (see below), whose sum is σ = 247233168. Its totient is φ = 64728000.

The previous prime is 135243431. The next prime is 135243457. The reversal of 135243452 is 254342531.

It is a happy number.

135243452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Its product of digits (14400) is a multiple of the sum of its prime factors (450).

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 11 ways as a sum of consecutive naturals, for example, 580328 + ... + 580560.

It is an arithmetic number, because the mean of its divisors is an integer number (6867588).

Almost surely, 2^135243452 is an apocalyptic number.

It is an amenable number.

135243452 is a deficient number, since it is larger than the sum of its proper divisors (111989716).

135243452 is a wasteful number, since it uses less digits than its factorization.

135243452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450 (or 417 counting only the distinct ones).

The product of its digits is 14400, while the sum is 29.

The square root of 135243452 is about 11629.4218256971. The cubic root of 135243452 is about 513.3009670191.

Adding to 135243452 its reverse (254342531), we get a palindrome (389585983).

The spelling of 135243452 in words is "one hundred thirty-five million, two hundred forty-three thousand, four hundred fifty-two".