135278355 has 16 divisors (see below), whose sum is σ = 217658880. Its totient is φ = 71743968.

The previous prime is 135278323. The next prime is 135278369. The reversal of 135278355 is 553872531.

It is not a de Polignac number, because 135278355 - 2⁵ = 135278323 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22507 + ... + 27876.

It is an arithmetic number, because the mean of its divisors is an integer number (13603680).

Almost surely, 2^135278355 is an apocalyptic number.

135278355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

135278355 is a deficient number, since it is larger than the sum of its proper divisors (82380525).

135278355 is a wasteful number, since it uses less digits than its factorization.

135278355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50570.

The product of its digits is 126000, while the sum is 39.

The square root of 135278355 is about 11630.9223623924. The cubic root of 135278355 is about 513.3451199951.

The spelling of 135278355 in words is "one hundred thirty-five million, two hundred seventy-eight thousand, three hundred fifty-five".