134187768 has 96 divisors (see below), whose sum is σ = 426993840. Its totient is φ = 37532160.

The previous prime is 134187721. The next prime is 134187769. The reversal of 134187768 is 867781431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134187769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3780 + ... + 16812.

Almost surely, 2^134187768 is an apocalyptic number.

134187768 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 134187768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213496920).

134187768 is an abundant number, since it is smaller than the sum of its proper divisors (292806072).

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

134187768 is a wasteful number, since it uses less digits than its factorization.

134187768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13069 (or 13062 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The square root of 134187768 is about 11583.9444059439. The cubic root of 134187768 is about 511.9619010550.

The spelling of 134187768 in words is "one hundred thirty-four million, one hundred eighty-seven thousand, seven hundred sixty-eight".