817467149 has 2 divisors, whose sum is σ = 817467150. Its totient is φ = 817467148.

The previous prime is 817467137. The next prime is 817467169. The reversal of 817467149 is 941764718.

It is a happy number.

817467149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 773841124 + 43626025 = 27818^2 + 6605^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-817467149 is a prime.

It is a Chen prime.

It is equal to p_41998196 and since 817467149 and 41998196 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (817467169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 408733574 + 408733575.

It is an arithmetic number, because the mean of its divisors is an integer number (408733575).

Almost surely, 2^817467149 is an apocalyptic number.

It is an amenable number.

817467149 is a deficient number, since it is larger than the sum of its proper divisors (1).

817467149 is an equidigital number, since it uses as much as digits as its factorization.

817467149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 338688, while the sum is 47.

The square root of 817467149 is about 28591.3824254792. The cubic root of 817467149 is about 935.0254595715.

The spelling of 817467149 in words is "eight hundred seventeen million, four hundred sixty-seven thousand, one hundred forty-nine".