134723520 has 224 divisors, whose sum is σ = 491581440. Its totient is φ = 34698240.

The previous prime is 134723503. The next prime is 134723527. The reversal of 134723520 is 25327431.

134723520 is a `hidden beast` number, since 134 + 7 + 2 + 3 + 520 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134723527) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 267589 + ... + 268091.

It is an arithmetic number, because the mean of its divisors is an integer number (2194560).

Almost surely, 2^134723520 is an apocalyptic number.

134723520 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 134723520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245790720).

134723520 is an abundant number, since it is smaller than the sum of its proper divisors (356857920).

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

134723520 is a wasteful number, since it uses less digits than its factorization.

134723520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560 (or 544 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 134723520 is about 11607.0461358608. The cubic root of 134723520 is about 512.6423415848.

The spelling of 134723520 in words is "one hundred thirty-four million, seven hundred twenty-three thousand, five hundred twenty".