135400122512 has 20 divisors (see below), whose sum is σ = 262841280876. Its totient is φ = 67570114560.

The previous prime is 135400122511. The next prime is 135400122521. The reversal of 135400122512 is 215221004531.

It can be written as a sum of positive squares in 2 ways, for example, as 27437934736 + 107962187776 = 165644^2 + 328576^2 .

It is not an unprimeable number, because it can be changed into a prime (135400122511) 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 3 ways as a sum of consecutive naturals, for example, 8113073 + ... + 8129744.

Almost surely, 2^135400122512 is an apocalyptic number.

It is an amenable number.

135400122512 is a deficient number, since it is larger than the sum of its proper divisors (127441158364).

135400122512 is a wasteful number, since it uses less digits than its factorization.

135400122512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16243346 (or 16243340 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The spelling of 135400122512 in words is "one hundred thirty-five billion, four hundred million, one hundred twenty-two thousand, five hundred twelve".