103731689 has 2 divisors, whose sum is σ = 103731690. Its totient is φ = 103731688.

The previous prime is 103731647. The next prime is 103731701. The reversal of 103731689 is 986137301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101505625 + 2226064 = 10075^2 + 1492^2 .

It is an emirp because it is prime and its reverse (986137301) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103731689 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (103731889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51865844 + 51865845.

It is an arithmetic number, because the mean of its divisors is an integer number (51865845).

Almost surely, 2^103731689 is an apocalyptic number.

It is an amenable number.

103731689 is a deficient number, since it is larger than the sum of its proper divisors (1).

103731689 is an equidigital number, since it uses as much as digits as its factorization.

103731689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 103731689 is about 10184.8755024301. The cubic root of 103731689 is about 469.8621732578.

The spelling of 103731689 in words is "one hundred three million, seven hundred thirty-one thousand, six hundred eighty-nine".