135020214 has 24 divisors (see below), whose sum is σ = 334336080. Its totient is φ = 38577168.

The previous prime is 135020183. The next prime is 135020233. The reversal of 135020214 is 412020531.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 535669 + ... + 535920.

It is an arithmetic number, because the mean of its divisors is an integer number (13930670).

Almost surely, 2^135020214 is an apocalyptic number.

135020214 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

135020214 is an abundant number, since it is smaller than the sum of its proper divisors (199315866).

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

135020214 is a wasteful number, since it uses less digits than its factorization.

135020214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071604 (or 1071601 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 135020214 is about 11619.8198781220. The cubic root of 135020214 is about 513.0183867650.

Adding to 135020214 its reverse (412020531), we get a palindrome (547040745).

The spelling of 135020214 in words is "one hundred thirty-five million, twenty thousand, two hundred fourteen".