108903121 has 2 divisors, whose sum is σ = 108903122. Its totient is φ = 108903120.

The previous prime is 108903101. The next prime is 108903143. The reversal of 108903121 is 121309801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68707521 + 40195600 = 8289^2 + 6340^2 .

It is a cyclic number.

It is not a de Polignac number, because 108903121 - 2⁷ = 108902993 is a prime.

It is not a weakly prime, because it can be changed into another prime (108903101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54451560 + 54451561.

It is an arithmetic number, because the mean of its divisors is an integer number (54451561).

Almost surely, 2^108903121 is an apocalyptic number.

It is an amenable number.

108903121 is a deficient number, since it is larger than the sum of its proper divisors (1).

108903121 is an equidigital number, since it uses as much as digits as its factorization.

108903121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 108903121 is about 10435.6658148869. The cubic root of 108903121 is about 477.5440541210.

The spelling of 108903121 in words is "one hundred eight million, nine hundred three thousand, one hundred twenty-one".