108603581 has 2 divisors, whose sum is σ = 108603582. Its totient is φ = 108603580.

The previous prime is 108603569. The next prime is 108603589. The reversal of 108603581 is 185306801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69039481 + 39564100 = 8309^2 + 6290^2 .

It is a cyclic number.

It is not a de Polignac number, because 108603581 - 2¹⁴ = 108587197 is a prime.

It is a super-2 number, since 2×108603581² = 23589475612047122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108603589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54301790 + 54301791.

It is an arithmetic number, because the mean of its divisors is an integer number (54301791).

Almost surely, 2^108603581 is an apocalyptic number.

It is an amenable number.

108603581 is a deficient number, since it is larger than the sum of its proper divisors (1).

108603581 is an equidigital number, since it uses as much as digits as its factorization.

108603581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 108603581 is about 10421.3041890159. The cubic root of 108603581 is about 477.1058209054.

It can be divided in two parts, 10860 and 3581, that added together give a palindrome (14441).

The spelling of 108603581 in words is "one hundred eight million, six hundred three thousand, five hundred eighty-one".