108503861 has 2 divisors, whose sum is σ = 108503862. Its totient is φ = 108503860.

The previous prime is 108503831. The next prime is 108503867. The reversal of 108503861 is 168305801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94672900 + 13830961 = 9730^2 + 3719^2 .

It is a cyclic number.

It is not a de Polignac number, because 108503861 - 2⁶ = 108503797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108503867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54251930 + 54251931.

It is an arithmetic number, because the mean of its divisors is an integer number (54251931).

Almost surely, 2^108503861 is an apocalyptic number.

It is an amenable number.

108503861 is a deficient number, since it is larger than the sum of its proper divisors (1).

108503861 is an equidigital number, since it uses as much as digits as its factorization.

108503861 is an evil number, because the sum of its binary digits is even.

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

The square root of 108503861 is about 10416.5186602819. The cubic root of 108503861 is about 476.9597497194.

The spelling of 108503861 in words is "one hundred eight million, five hundred three thousand, eight hundred sixty-one".