103840591 has 2 divisors, whose sum is σ = 103840592. Its totient is φ = 103840590.

The previous prime is 103840547. The next prime is 103840603. The reversal of 103840591 is 195048301.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 103840591 - 2¹⁷ = 103709519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103840501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51920295 + 51920296.

It is an arithmetic number, because the mean of its divisors is an integer number (51920296).

Almost surely, 2^103840591 is an apocalyptic number.

103840591 is a deficient number, since it is larger than the sum of its proper divisors (1).

103840591 is an equidigital number, since it uses as much as digits as its factorization.

103840591 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 103840591 is about 10190.2203607184. The cubic root of 103840591 is about 470.0265429404.

Adding to 103840591 its reverse (195048301), we get a palindrome (298888892).

The spelling of 103840591 in words is "one hundred three million, eight hundred forty thousand, five hundred ninety-one".