1816001051 has 2 divisors, whose sum is σ = 1816001052. Its totient is φ = 1816001050.

The previous prime is 1816001029. The next prime is 1816001053. The reversal of 1816001051 is 1501006181.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1816001051 - 2³⁰ = 742259227 is a prime.

Together with 1816001053, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1816001053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 908000525 + 908000526.

It is an arithmetic number, because the mean of its divisors is an integer number (908000526).

Almost surely, 2^1816001051 is an apocalyptic number.

1816001051 is a deficient number, since it is larger than the sum of its proper divisors (1).

1816001051 is an equidigital number, since it uses as much as digits as its factorization.

1816001051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 23.

The square root of 1816001051 is about 42614.5638367918. The cubic root of 1816001051 is about 1220.0342754412.

The spelling of 1816001051 in words is "one billion, eight hundred sixteen million, one thousand, fifty-one".