816353147 has 2 divisors, whose sum is σ = 816353148. Its totient is φ = 816353146.

The previous prime is 816353129. The next prime is 816353171. The reversal of 816353147 is 741353618.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 816353147 - 2¹⁶ = 816287611 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 816353147.

It is not a weakly prime, because it can be changed into another prime (810353147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 408176573 + 408176574.

It is an arithmetic number, because the mean of its divisors is an integer number (408176574).

Almost surely, 2^816353147 is an apocalyptic number.

816353147 is a deficient number, since it is larger than the sum of its proper divisors (1).

816353147 is an equidigital number, since it uses as much as digits as its factorization.

816353147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 38.

The square root of 816353147 is about 28571.8943544176. The cubic root of 816353147 is about 934.6005316923.

The spelling of 816353147 in words is "eight hundred sixteen million, three hundred fifty-three thousand, one hundred forty-seven".