134813840 has 40 divisors (see below), whose sum is σ = 358221120. Its totient is φ = 46221696.

The previous prime is 134813839. The next prime is 134813851. The reversal of 134813840 is 48318431.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 134813797 and 134813806.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119810 + ... + 120929.

It is an arithmetic number, because the mean of its divisors is an integer number (8955528).

Almost surely, 2^134813840 is an apocalyptic number.

134813840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134813840 is an abundant number, since it is smaller than the sum of its proper divisors (223407280).

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

134813840 is a wasteful number, since it uses less digits than its factorization.

134813840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240759 (or 240753 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 134813840 is about 11610.9362240949. The cubic root of 134813840 is about 512.7568761839.

The spelling of 134813840 in words is "one hundred thirty-four million, eight hundred thirteen thousand, eight hundred forty".