135728214 has 16 divisors (see below), whose sum is σ = 271676928. Its totient is φ = 45205992.

The previous prime is 135728213. The next prime is 135728231. The reversal of 135728214 is 412827531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135728213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 562 + ... + 16485.

It is an arithmetic number, because the mean of its divisors is an integer number (16979808).

Almost surely, 2^135728214 is an apocalyptic number.

135728214 is an abundant number, since it is smaller than the sum of its proper divisors (135948714).

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

135728214 is a wasteful number, since it uses less digits than its factorization.

135728214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18379.

The product of its digits is 13440, while the sum is 33.

The square root of 135728214 is about 11650.2452334704. The cubic root of 135728214 is about 513.9135218662.

The spelling of 135728214 in words is "one hundred thirty-five million, seven hundred twenty-eight thousand, two hundred fourteen".