135146549278 has 16 divisors (see below), whose sum is σ = 218371221936. Its totient is φ = 62358883200.

The previous prime is 135146549267. The next prime is 135146549281. The reversal of 135146549278 is 872945641531.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 584523 + ... + 782278.

It is an arithmetic number, because the mean of its divisors is an integer number (13648201371).

Almost surely, 2^135146549278 is an apocalyptic number.

135146549278 is a deficient number, since it is larger than the sum of its proper divisors (83224672658).

135146549278 is a wasteful number, since it uses less digits than its factorization.

135146549278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1370619.

The product of its digits is 7257600, while the sum is 55.

The spelling of 135146549278 in words is "one hundred thirty-five billion, one hundred forty-six million, five hundred forty-nine thousand, two hundred seventy-eight".