134220312 has 48 divisors (see below), whose sum is σ = 373345440. Its totient is φ = 43530048.

The previous prime is 134220293. The next prime is 134220337. The reversal of 134220312 is 213022431.

134220312 is a `hidden beast` number, since 134 + 220 + 312 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22528 + ... + 27855.

It is an arithmetic number, because the mean of its divisors is an integer number (7778030).

Almost surely, 2^134220312 is an apocalyptic number.

134220312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

134220312 is an abundant number, since it is smaller than the sum of its proper divisors (239125128).

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

134220312 is a wasteful number, since it uses less digits than its factorization.

134220312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50432 (or 50425 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 134220312 is about 11585.3490236591. The cubic root of 134220312 is about 512.0032857048.

Adding to 134220312 its reverse (213022431), we get a palindrome (347242743).

The spelling of 134220312 in words is "one hundred thirty-four million, two hundred twenty thousand, three hundred twelve".