135211214 has 4 divisors (see below), whose sum is σ = 202816824. Its totient is φ = 67605606.

The previous prime is 135211207. The next prime is 135211259. The reversal of 135211214 is 412112531.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33802802 + ... + 33802805.

It is an arithmetic number, because the mean of its divisors is an integer number (50704206).

Almost surely, 2^135211214 is an apocalyptic number.

135211214 is a deficient number, since it is larger than the sum of its proper divisors (67605610).

135211214 is an equidigital number, since it uses as much as digits as its factorization.

135211214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67605609.

The product of its digits is 240, while the sum is 20.

The square root of 135211214 is about 11628.0356896597. The cubic root of 135211214 is about 513.2601785710.

Adding to 135211214 its reverse (412112531), we get a palindrome (547323745).

The spelling of 135211214 in words is "one hundred thirty-five million, two hundred eleven thousand, two hundred fourteen".