1816001147 has 2 divisors, whose sum is σ = 1816001148. Its totient is φ = 1816001146.

The previous prime is 1816001113. The next prime is 1816001153. The reversal of 1816001147 is 7411006181.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1816001147 - 2⁸ = 1816000891 is a prime.

It is not a weakly prime, because it can be changed into another prime (1816001167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 908000573 + 908000574.

It is an arithmetic number, because the mean of its divisors is an integer number (908000574).

Almost surely, 2^1816001147 is an apocalyptic number.

1816001147 is a deficient number, since it is larger than the sum of its proper divisors (1).

1816001147 is an equidigital number, since it uses as much as digits as its factorization.

1816001147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 29.

The square root of 1816001147 is about 42614.5649631672. The cubic root of 1816001147 is about 1220.0342969396.

The spelling of 1816001147 in words is "one billion, eight hundred sixteen million, one thousand, one hundred forty-seven".