825134437 has 2 divisors, whose sum is σ = 825134438. Its totient is φ = 825134436.

The previous prime is 825134417. The next prime is 825134449. The reversal of 825134437 is 734431528.

It is a happy number.

825134437 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 772339681 + 52794756 = 27791^2 + 7266^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-825134437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 825134396 and 825134405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (825134417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 412567218 + 412567219.

It is an arithmetic number, because the mean of its divisors is an integer number (412567219).

Almost surely, 2^825134437 is an apocalyptic number.

It is an amenable number.

825134437 is a deficient number, since it is larger than the sum of its proper divisors (1).

825134437 is an equidigital number, since it uses as much as digits as its factorization.

825134437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640, while the sum is 37.

The square root of 825134437 is about 28725.1533851431. The cubic root of 825134437 is about 937.9396691375.

The spelling of 825134437 in words is "eight hundred twenty-five million, one hundred thirty-four thousand, four hundred thirty-seven".