103989751 has 8 divisors (see below), whose sum is σ = 104969520. Its totient is φ = 103014912.

The previous prime is 103989733. The next prime is 103989761. The reversal of 103989751 is 157989301.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 103989751 - 2¹⁷ = 103858679 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103989698 and 103989707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103989761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50916 + ... + 52918.

It is an arithmetic number, because the mean of its divisors is an integer number (13121190).

Almost surely, 2^103989751 is an apocalyptic number.

103989751 is a deficient number, since it is larger than the sum of its proper divisors (979769).

103989751 is a wasteful number, since it uses less digits than its factorization.

103989751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2465.

The product of its (nonzero) digits is 68040, while the sum is 43.

The square root of 103989751 is about 10197.5365162376. The cubic root of 103989751 is about 470.2514890692.

The spelling of 103989751 in words is "one hundred three million, nine hundred eighty-nine thousand, seven hundred fifty-one".