134723808 has 144 divisors (see below), whose sum is σ = 403341120. Its totient is φ = 42605568.

The previous prime is 134723779. The next prime is 134723887. The reversal of 134723808 is 808327431.

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, 500698 + ... + 500966.

It is an arithmetic number, because the mean of its divisors is an integer number (2800980).

Almost surely, 2^134723808 is an apocalyptic number.

134723808 is a gapful number since it is divisible by the number (18) 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 134723808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201670560).

134723808 is an abundant number, since it is smaller than the sum of its proper divisors (268617312).

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

134723808 is a wasteful number, since it uses less digits than its factorization.

134723808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369 (or 358 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 134723808 is about 11607.0585421113. The cubic root of 134723808 is about 512.6427068783.

It can be divided in two parts, 134723 and 808, that added together give a palindrome (135531).

The spelling of 134723808 in words is "one hundred thirty-four million, seven hundred twenty-three thousand, eight hundred eight".