6825157 has 4 divisors (see below), whose sum is σ = 6834220. Its totient is φ = 6816096.

The previous prime is 6825151. The next prime is 6825167. The reversal of 6825157 is 7515286.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7515286 = 2 ⋅3757643.

It can be written as a sum of positive squares in 2 ways, for example, as 2556801 + 4268356 = 1599^2 + 2066^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6825157 is a prime.

It is the 2613-rd Hogben number.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6825151) by changing a digit.

It is a nontrivial repunit in base 2612.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3288 + ... + 4945.

It is an arithmetic number, because the mean of its divisors is an integer number (1708555).

Almost surely, 2^6825157 is an apocalyptic number.

It is an amenable number.

6825157 is a deficient number, since it is larger than the sum of its proper divisors (9063).

6825157 is an equidigital number, since it uses as much as digits as its factorization.

6825157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9062.

The product of its digits is 16800, while the sum is 34.

The square root of 6825157 is about 2612.5001435407. The cubic root of 6825157 is about 189.6869915542.

The spelling of 6825157 in words is "six million, eight hundred twenty-five thousand, one hundred fifty-seven".