134805521025 has 192 divisors, whose sum is σ = 289798594560. Its totient is φ = 60156518400.

The previous prime is 134805521021. The next prime is 134805521111. The reversal of 134805521025 is 520125508431.

134805521025 is a `hidden beast` number, since 1 + 3 + 4 + 80 + 552 + 1 + 0 + 25 = 666.

It is not a de Polignac number, because 134805521025 - 2² = 134805521021 is a prime.

It is not an unprimeable number, because it can be changed into a prime (134805521021) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 142349602 + ... + 142350548.

It is an arithmetic number, because the mean of its divisors is an integer number (1509367680).

Almost surely, 2^134805521025 is an apocalyptic number.

134805521025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

134805521025 is an abundant number, since it is smaller than the sum of its proper divisors (154993073535).

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

134805521025 is a wasteful number, since it uses less digits than its factorization.

134805521025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1661 (or 1650 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

The spelling of 134805521025 in words is "one hundred thirty-four billion, eight hundred five million, five hundred twenty-one thousand, twenty-five".