103550749 has 2 divisors, whose sum is σ = 103550750. Its totient is φ = 103550748.

The previous prime is 103550747. The next prime is 103550771. The reversal of 103550749 is 947055301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102212100 + 1338649 = 10110^2 + 1157^2 .

It is a cyclic number.

It is not a de Polignac number, because 103550749 - 2¹ = 103550747 is a prime.

It is a super-3 number, since 3×103550749³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 103550747, it forms a pair of twin primes.

It is a nialpdrome in base 14.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103550747) 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, 51775374 + 51775375.

It is an arithmetic number, because the mean of its divisors is an integer number (51775375).

Almost surely, 2^103550749 is an apocalyptic number.

It is an amenable number.

103550749 is a deficient number, since it is larger than the sum of its proper divisors (1).

103550749 is an equidigital number, since it uses as much as digits as its factorization.

103550749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 103550749 is about 10175.9888462989. The cubic root of 103550749 is about 469.5888194985.

The spelling of 103550749 in words is "one hundred three million, five hundred fifty thousand, seven hundred forty-nine".