134320020 has 48 divisors (see below), whose sum is σ = 383201280. Its totient is φ = 35142016.

The previous prime is 134320019. The next prime is 134320033. The reversal of 134320020 is 20023431.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17940 + ... + 24299.

It is an arithmetic number, because the mean of its divisors is an integer number (7983360).

Almost surely, 2^134320020 is an apocalyptic number.

134320020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134320020 is an abundant number, since it is smaller than the sum of its proper divisors (248881260).

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

134320020 is a wasteful number, since it uses less digits than its factorization.

134320020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42304 (or 42302 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 134320020 is about 11589.6514183991. The cubic root of 134320020 is about 512.1300379743.

Adding to 134320020 its reverse (20023431), we get a palindrome (154343451).

The spelling of 134320020 in words is "one hundred thirty-four million, three hundred twenty thousand, twenty".