103816591 has 2 divisors, whose sum is σ = 103816592. Its totient is φ = 103816590.

The previous prime is 103816579. The next prime is 103816621. The reversal of 103816591 is 195618301.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 103816591 - 2²¹ = 101719439 is a prime.

It is a super-2 number, since 2×103816591² = 21555769133722562, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103816541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51908295 + 51908296.

It is an arithmetic number, because the mean of its divisors is an integer number (51908296).

Almost surely, 2^103816591 is an apocalyptic number.

103816591 is a deficient number, since it is larger than the sum of its proper divisors (1).

103816591 is an equidigital number, since it uses as much as digits as its factorization.

103816591 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 34.

The square root of 103816591 is about 10189.0426930110. The cubic root of 103816591 is about 469.9903287583.

The spelling of 103816591 in words is "one hundred three million, eight hundred sixteen thousand, five hundred ninety-one".