109000987 has 2 divisors, whose sum is σ = 109000988. Its totient is φ = 109000986.

The previous prime is 109000921. The next prime is 109000993. The reversal of 109000987 is 789000901.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109000987 is a prime.

It is equal to p_6249229 and since 109000987 and 6249229 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (109000687) 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, 54500493 + 54500494.

It is an arithmetic number, because the mean of its divisors is an integer number (54500494).

Almost surely, 2^109000987 is an apocalyptic number.

109000987 is a deficient number, since it is larger than the sum of its proper divisors (1).

109000987 is an equidigital number, since it uses as much as digits as its factorization.

109000987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 34.

The square root of 109000987 is about 10440.3537775307. The cubic root of 109000987 is about 477.6870599209.

The spelling of 109000987 in words is "one hundred nine million, nine hundred eighty-seven", and thus it is an aban number.