134212005 has 16 divisors (see below), whose sum is σ = 238599360. Its totient is φ = 71579664.

The previous prime is 134212003. The next prime is 134212019. The reversal of 134212005 is 500212431.

It is not a de Polignac number, because 134212005 - 2¹ = 134212003 is a prime.

It is a super-2 number, since 2×134212005² = 36025724572240050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134212003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 496947 + ... + 497216.

It is an arithmetic number, because the mean of its divisors is an integer number (14912460).

Almost surely, 2^134212005 is an apocalyptic number.

134212005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

134212005 is a deficient number, since it is larger than the sum of its proper divisors (104387355).

134212005 is an equidigital number, since it uses as much as digits as its factorization.

134212005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994177 (or 994171 counting only the distinct ones).

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

The square root of 134212005 is about 11584.9905049594. The cubic root of 134212005 is about 511.9927227257.

Adding to 134212005 its reverse (500212431), we get a palindrome (634424436).

The spelling of 134212005 in words is "one hundred thirty-four million, two hundred twelve thousand, five".