135340212 has 72 divisors (see below), whose sum is σ = 367768128. Its totient is φ = 37946880.

The previous prime is 135340207. The next prime is 135340229. The reversal of 135340212 is 212043531.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 312348 + ... + 312780.

Almost surely, 2^135340212 is an apocalyptic number.

135340212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135340212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183884064).

135340212 is an abundant number, since it is smaller than the sum of its proper divisors (232427916).

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

135340212 is a wasteful number, since it uses less digits than its factorization.

135340212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569 (or 506 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 135340212 is about 11633.5812198996. The cubic root of 135340212 is about 513.4233516541.

Adding to 135340212 its reverse (212043531), we get a palindrome (347383743).

The spelling of 135340212 in words is "one hundred thirty-five million, three hundred forty thousand, two hundred twelve".