1840530137 has 2 divisors, whose sum is σ = 1840530138. Its totient is φ = 1840530136.

The previous prime is 1840530121. The next prime is 1840530169. The reversal of 1840530137 is 7310350481.

It is an a-pointer prime, because the next prime (1840530169) can be obtained adding 1840530137 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1683378841 + 157151296 = 41029^2 + 12536^2 .

It is a cyclic number.

It is not a de Polignac number, because 1840530137 - 2⁴ = 1840530121 is a prime.

It is not a weakly prime, because it can be changed into another prime (1840530187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 920265068 + 920265069.

It is an arithmetic number, because the mean of its divisors is an integer number (920265069).

Almost surely, 2^1840530137 is an apocalyptic number.

It is an amenable number.

1840530137 is a deficient number, since it is larger than the sum of its proper divisors (1).

1840530137 is an equidigital number, since it uses as much as digits as its factorization.

1840530137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 1840530137 is about 42901.4001752857. The cubic root of 1840530137 is about 1225.5028088899.

The spelling of 1840530137 in words is "one billion, eight hundred forty million, five hundred thirty thousand, one hundred thirty-seven".