103720229 has 2 divisors, whose sum is σ = 103720230. Its totient is φ = 103720228.

The previous prime is 103720223. The next prime is 103720261. The reversal of 103720229 is 922027301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90288004 + 13432225 = 9502^2 + 3665^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103720229 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 103720198 and 103720207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103720223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51860114 + 51860115.

It is an arithmetic number, because the mean of its divisors is an integer number (51860115).

Almost surely, 2^103720229 is an apocalyptic number.

It is an amenable number.

103720229 is a deficient number, since it is larger than the sum of its proper divisors (1).

103720229 is an equidigital number, since it uses as much as digits as its factorization.

103720229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 103720229 is about 10184.3128879665. The cubic root of 103720229 is about 469.8448695812.

The spelling of 103720229 in words is "one hundred three million, seven hundred twenty thousand, two hundred twenty-nine".