1816103137 has 2 divisors, whose sum is σ = 1816103138. Its totient is φ = 1816103136.

The previous prime is 1816103089. The next prime is 1816103143. The reversal of 1816103137 is 7313016181.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1008634081 + 807469056 = 31759^2 + 28416^2 .

It is a cyclic number.

It is not a de Polignac number, because 1816103137 - 2²³ = 1807714529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1816103099 and 1816103108.

It is not a weakly prime, because it can be changed into another prime (1816103167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 908051568 + 908051569.

It is an arithmetic number, because the mean of its divisors is an integer number (908051569).

Almost surely, 2^1816103137 is an apocalyptic number.

It is an amenable number.

1816103137 is a deficient number, since it is larger than the sum of its proper divisors (1).

1816103137 is an equidigital number, since it uses as much as digits as its factorization.

1816103137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 1816103137 is about 42615.7616029562. The cubic root of 1816103137 is about 1220.0571363100.

The spelling of 1816103137 in words is "one billion, eight hundred sixteen million, one hundred three thousand, one hundred thirty-seven".