135440214312 has 64 divisors (see below), whose sum is σ = 370089276480. Its totient is φ = 41051907072.

The previous prime is 135440214277. The next prime is 135440214317. The reversal of 135440214312 is 213412044531.

It is a self number, because there is not a number n which added to its sum of digits gives 135440214312.

It is not an unprimeable number, because it can be changed into a prime (135440214317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3218673 + ... + 3260480.

It is an arithmetic number, because the mean of its divisors is an integer number (5782644945).

Almost surely, 2^135440214312 is an apocalyptic number.

135440214312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

135440214312 is an abundant number, since it is smaller than the sum of its proper divisors (234649062168).

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

135440214312 is a wasteful number, since it uses less digits than its factorization.

135440214312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6479242 (or 6479238 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 135440214312 its reverse (213412044531), we get a palindrome (348852258843).

The spelling of 135440214312 in words is "one hundred thirty-five billion, four hundred forty million, two hundred fourteen thousand, three hundred twelve".