816162349 has 2 divisors, whose sum is σ = 816162350. Its totient is φ = 816162348.

The previous prime is 816162343. The next prime is 816162407. The reversal of 816162349 is 943261618.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 651168324 + 164994025 = 25518^2 + 12845^2 .

It is a cyclic number.

It is not a de Polignac number, because 816162349 - 2⁹ = 816161837 is a prime.

It is a super-2 number, since 2×816162349² = 1332241959850395602, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (816162343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 408081174 + 408081175.

It is an arithmetic number, because the mean of its divisors is an integer number (408081175).

Almost surely, 2^816162349 is an apocalyptic number.

It is an amenable number.

816162349 is a deficient number, since it is larger than the sum of its proper divisors (1).

816162349 is an equidigital number, since it uses as much as digits as its factorization.

816162349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 40.

The square root of 816162349 is about 28568.5552487346. Note that the first 3 decimals coincide. The cubic root of 816162349 is about 934.5277144289.

The spelling of 816162349 in words is "eight hundred sixteen million, one hundred sixty-two thousand, three hundred forty-nine".