134523011520 has 196 divisors, whose sum is σ = 480280507560. Its totient is φ = 35872740864.

The previous prime is 134523011509. The next prime is 134523011561. The reversal of 134523011520 is 25110325431.

134523011520 is a `hidden beast` number, since 1 + 3 + 4 + 523 + 0 + 115 + 20 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 55050 + ... + 521609.

Almost surely, 2^134523011520 is an apocalyptic number.

134523011520 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 134523011520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240140253780).

134523011520 is an abundant number, since it is smaller than the sum of its proper divisors (345757496040).

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

134523011520 is an frugal number, since it uses more digits than its factorization.

134523011520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576694 (or 576669 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 134523011520 its reverse (25110325431), we get a palindrome (159633336951).

The spelling of 134523011520 in words is "one hundred thirty-four billion, five hundred twenty-three million, eleven thousand, five hundred twenty".