103730581 has 2 divisors, whose sum is σ = 103730582. Its totient is φ = 103730580.

The previous prime is 103730569. The next prime is 103730587. The reversal of 103730581 is 185037301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53802225 + 49928356 = 7335^2 + 7066^2 .

It is an emirp because it is prime and its reverse (185037301) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 103730581 - 2⁷ = 103730453 is a prime.

It is a super-2 number, since 2×103730581² = 21520066869195122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103730587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51865290 + 51865291.

It is an arithmetic number, because the mean of its divisors is an integer number (51865291).

Almost surely, 2^103730581 is an apocalyptic number.

It is an amenable number.

103730581 is a deficient number, since it is larger than the sum of its proper divisors (1).

103730581 is an equidigital number, since it uses as much as digits as its factorization.

103730581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 103730581 is about 10184.8211079037. The cubic root of 103730581 is about 469.8605003228.

Adding to 103730581 its reverse (185037301), we get a palindrome (288767882).

The spelling of 103730581 in words is "one hundred three million, seven hundred thirty thousand, five hundred eighty-one".