134388 has 18 divisors (see below), whose sum is σ = 339794. Its totient is φ = 44784.

The previous prime is 134371. The next prime is 134399. The reversal of 134388 is 883431.

It can be written as a sum of positive squares in only one way, i.e., 116964 + 17424 = 342^2 + 132^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 134388.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1831 + ... + 1902.

2¹³⁴³⁸⁸ is an apocalyptic number.

134388 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

134388 is an abundant number, since it is smaller than the sum of its proper divisors (205406).

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

134388 is a wasteful number, since it uses less digits than its factorization.

134388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3743 (or 3738 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 134388 is about 366.5896888894. The cubic root of 134388 is about 51.2216420551.

It can be divided in two parts, 1343 and 88, that added together give a triangular number (1431 = T₅₃).

The spelling of 134388 in words is "one hundred thirty-four thousand, three hundred eighty-eight".