103551 has 8 divisors (see below), whose sum is σ = 157824. Its totient is φ = 59160.

The previous prime is 103549. The next prime is 103553. The reversal of 103551 is 155301.

It is an interprime number because it is at equal distance from previous prime (103549) and next prime (103553).

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

It is not a de Polignac number, because 103551 - 2¹ = 103549 is a prime.

It is a super-3 number, since 3×103551³ = 3331072970979453, which contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 103551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2445 + ... + 2486.

It is an arithmetic number, because the mean of its divisors is an integer number (19728).

2¹⁰³⁵⁵¹ is an apocalyptic number.

103551 is a deficient number, since it is larger than the sum of its proper divisors (54273).

103551 is an equidigital number, since it uses as much as digits as its factorization.

103551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4941.

The product of its (nonzero) digits is 75, while the sum is 15.

The square root of 103551 is about 321.7934119897. The cubic root of 103551 is about 46.9589198915.

Adding to 103551 its reverse (155301), we get a palindrome (258852).

The spelling of 103551 in words is "one hundred three thousand, five hundred fifty-one".