134158640 has 160 divisors (see below), whose sum is σ = 402831360. Its totient is φ = 40320000.

The previous prime is 134158637. The next prime is 134158691. The reversal of 134158640 is 46851431.

It is a junction number, because it is equal to n+sod(n) for n = 134158597 and 134158606.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 178265 + ... + 179015.

It is an arithmetic number, because the mean of its divisors is an integer number (2517696).

Almost surely, 2^134158640 is an apocalyptic number.

134158640 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 134158640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201415680).

134158640 is an abundant number, since it is smaller than the sum of its proper divisors (268672720).

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

134158640 is a wasteful number, since it uses less digits than its factorization.

134158640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811 (or 805 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 134158640 is about 11582.6870802936. The cubic root of 134158640 is about 511.9248546943.

The spelling of 134158640 in words is "one hundred thirty-four million, one hundred fifty-eight thousand, six hundred forty".