135243687787354 has 8 divisors (see below), whose sum is σ = 202870140193908. Its totient is φ = 67620307722720.

The previous prime is 135243687787261. The next prime is 135243687787361. The reversal of 135243687787354 is 453787786342531.

It can be written as a sum of positive squares in 2 ways, for example, as 135107449286329 + 136238501025 = 11623573^2 + 369105^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 767975427 + ... + 768151510.

Almost surely, 2^{135243687787354} is an apocalyptic number.

135243687787354 is a deficient number, since it is larger than the sum of its proper divisors (67626452406554).

135243687787354 is a wasteful number, since it uses less digits than its factorization.

135243687787354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1536170960.

The product of its digits is 2844979200, while the sum is 73.

The spelling of 135243687787354 in words is "one hundred thirty-five trillion, two hundred forty-three billion, six hundred eighty-seven million, seven hundred eighty-seven thousand, three hundred fifty-four".