816828151 has 2 divisors, whose sum is σ = 816828152. Its totient is φ = 816828150.

The previous prime is 816828143. The next prime is 816828167. The reversal of 816828151 is 151828618.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 816828151 - 2³ = 816828143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (816828101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 408414075 + 408414076.

It is an arithmetic number, because the mean of its divisors is an integer number (408414076).

Almost surely, 2^816828151 is an apocalyptic number.

816828151 is a deficient number, since it is larger than the sum of its proper divisors (1).

816828151 is an equidigital number, since it uses as much as digits as its factorization.

816828151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30720, while the sum is 40.

The square root of 816828151 is about 28580.2055800864. The cubic root of 816828151 is about 934.7817657235.

The spelling of 816828151 in words is "eight hundred sixteen million, eight hundred twenty-eight thousand, one hundred fifty-one".