825715134 has 80 divisors (see below), whose sum is σ = 1943682048. Its totient is φ = 261497808.

The previous prime is 825715133. The next prime is 825715151. The reversal of 825715134 is 431517528.

825715134 is a `hidden beast` number, since 8 + 2 + 571 + 51 + 34 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (825715133) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 621579 + ... + 622905.

Almost surely, 2^825715134 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 825715134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (971841024).

825715134 is an abundant number, since it is smaller than the sum of its proper divisors (1117966914).

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

825715134 is a wasteful number, since it uses less digits than its factorization.

825715134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1531 (or 1522 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 825715134 is about 28735.2594211363. The cubic root of 825715134 is about 938.1596458297.

The spelling of 825715134 in words is "eight hundred twenty-five million, seven hundred fifteen thousand, one hundred thirty-four".