134670816 has 144 divisors (see below), whose sum is σ = 457062480. Its totient is φ = 38465280.

The previous prime is 134670791. The next prime is 134670847. The reversal of 134670816 is 618076431.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40746 + ... + 43926.

It is an arithmetic number, because the mean of its divisors is an integer number (3174045).

Almost surely, 2^134670816 is an apocalyptic number.

134670816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 134670816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (228531240).

134670816 is an abundant number, since it is smaller than the sum of its proper divisors (322391664).

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

134670816 is a wasteful number, since it uses less digits than its factorization.

134670816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3214 (or 3193 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 134670816 is about 11604.7755687045. The cubic root of 134670816 is about 512.5754841028.

The spelling of 134670816 in words is "one hundred thirty-four million, six hundred seventy thousand, eight hundred sixteen".