135140812 has 24 divisors (see below), whose sum is σ = 248018400. Its totient is φ = 64342656.

The previous prime is 135140771. The next prime is 135140843. The reversal of 135140812 is 218041531.

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 7 ways as a sum of consecutive naturals, for example, 489 + ... + 16447.

It is an arithmetic number, because the mean of its divisors is an integer number (10334100).

Almost surely, 2^135140812 is an apocalyptic number.

It is an amenable number.

135140812 is a deficient number, since it is larger than the sum of its proper divisors (112877588).

135140812 is a wasteful number, since it uses less digits than its factorization.

135140812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16065 (or 16063 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 135140812 is about 11625.0080430080. The cubic root of 135140812 is about 513.1710813840.

The spelling of 135140812 in words is "one hundred thirty-five million, one hundred forty thousand, eight hundred twelve".