134500240 has 80 divisors (see below), whose sum is σ = 376225920. Its totient is φ = 43683840.

The previous prime is 134500211. The next prime is 134500241. The reversal of 134500240 is 42005431.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (134500241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4320 + ... + 16960.

It is an arithmetic number, because the mean of its divisors is an integer number (4702824).

Almost surely, 2^134500240 is an apocalyptic number.

134500240 is a gapful number since it is divisible by the number (10) 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 134500240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188112960).

134500240 is an abundant number, since it is smaller than the sum of its proper divisors (241725680).

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

134500240 is a wasteful number, since it uses less digits than its factorization.

134500240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12680 (or 12674 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 134500240 is about 11597.4238518733. The cubic root of 134500240 is about 512.3589808320.

Adding to 134500240 its reverse (42005431), we get a palindrome (176505671).

The spelling of 134500240 in words is "one hundred thirty-four million, five hundred thousand, two hundred forty".