825134371 has 2 divisors, whose sum is σ = 825134372. Its totient is φ = 825134370.

The previous prime is 825134351. The next prime is 825134377. The reversal of 825134371 is 173431528.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 825134371 - 2²¹ = 823037219 is a prime.

It is not a weakly prime, because it can be changed into another prime (825134377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 412567185 + 412567186.

It is an arithmetic number, because the mean of its divisors is an integer number (412567186).

Almost surely, 2^825134371 is an apocalyptic number.

825134371 is a deficient number, since it is larger than the sum of its proper divisors (1).

825134371 is an equidigital number, since it uses as much as digits as its factorization.

825134371 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 34.

The square root of 825134371 is about 28725.1522363242. The cubic root of 825134371 is about 937.9396441298.

Adding to 825134371 its reverse (173431528), we get a palindrome (998565899).

The spelling of 825134371 in words is "eight hundred twenty-five million, one hundred thirty-four thousand, three hundred seventy-one".