134707640 has 64 divisors (see below), whose sum is σ = 313804800. Its totient is φ = 52011648.

The previous prime is 134707637. The next prime is 134707649. The reversal of 134707640 is 46707431.

It is a happy number.

It is a super-3 number, since 3×134707640³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 134707597 and 134707606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134707649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148067 + ... + 148973.

It is an arithmetic number, because the mean of its divisors is an integer number (4903200).

Almost surely, 2^134707640 is an apocalyptic number.

134707640 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 134707640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156902400).

134707640 is an abundant number, since it is smaller than the sum of its proper divisors (179097160).

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

134707640 is a wasteful number, since it uses less digits than its factorization.

134707640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044 (or 1040 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 134707640 is about 11606.3620484629. The cubic root of 134707640 is about 512.6221988998.

The spelling of 134707640 in words is "one hundred thirty-four million, seven hundred seven thousand, six hundred forty".