134643020 has 12 divisors (see below), whose sum is σ = 282750384. Its totient is φ = 53857200.

The previous prime is 134643017. The next prime is 134643029. The reversal of 134643020 is 20346431.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (134643029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3366056 + ... + 3366095.

It is an arithmetic number, because the mean of its divisors is an integer number (23562532).

Almost surely, 2^134643020 is an apocalyptic number.

134643020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134643020 is an abundant number, since it is smaller than the sum of its proper divisors (148107364).

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

134643020 is a wasteful number, since it uses less digits than its factorization.

134643020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6732160 (or 6732158 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 134643020 is about 11603.5778964938. The cubic root of 134643020 is about 512.5402165546.

Adding to 134643020 its reverse (20346431), we get a palindrome (154989451).

The spelling of 134643020 in words is "one hundred thirty-four million, six hundred forty-three thousand, twenty".