135242312 has 64 divisors (see below), whose sum is σ = 273024000. Its totient is φ = 62689536.

The previous prime is 135242311. The next prime is 135242321. The reversal of 135242312 is 213242531.

It is not an unprimeable number, because it can be changed into a prime (135242311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 861338 + ... + 861494.

It is an arithmetic number, because the mean of its divisors is an integer number (4266000).

Almost surely, 2^135242312 is an apocalyptic number.

It is an amenable number.

135242312 is an abundant number, since it is smaller than the sum of its proper divisors (137781688).

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

135242312 is a wasteful number, since it uses less digits than its factorization.

135242312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318 (or 314 counting only the distinct ones).

The product of its digits is 1440, while the sum is 23.

The square root of 135242312 is about 11629.3728119792. The cubic root of 135242312 is about 513.2995247688.

Adding to 135242312 its reverse (213242531), we get a palindrome (348484843).

The spelling of 135242312 in words is "one hundred thirty-five million, two hundred forty-two thousand, three hundred twelve".