135130212 has 72 divisors (see below), whose sum is σ = 413352576. Its totient is φ = 36336384.

The previous prime is 135130201. The next prime is 135130249. The reversal of 135130212 is 212031531.

135130212 is a `hidden beast` number, since 1 + 351 + 302 + 12 = 666.

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

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, 11488 + ... + 20055.

It is an arithmetic number, because the mean of its divisors is an integer number (5741008).

Almost surely, 2^135130212 is an apocalyptic number.

135130212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

135130212 is an abundant number, since it is smaller than the sum of its proper divisors (278222364).

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

135130212 is a wasteful number, since it uses less digits than its factorization.

135130212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31577 (or 31572 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 135130212 is about 11624.5521204045. The cubic root of 135130212 is about 513.1576638836.

Adding to 135130212 its reverse (212031531), we get a palindrome (347161743).

It can be divided in two parts, 13 and 5130212, that added together give a square (5130225 = 2265²).

The spelling of 135130212 in words is "one hundred thirty-five million, one hundred thirty thousand, two hundred twelve".