103551503 has 4 divisors (see below), whose sum is σ = 112965288. Its totient is φ = 94137720.

The previous prime is 103551499. The next prime is 103551509. The reversal of 103551503 is 305155301.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 103551503 - 2² = 103551499 is a prime.

It is a super-3 number, since 3×103551503³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103551509) 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 3 ways as a sum of consecutive naturals, for example, 4706876 + ... + 4706897.

It is an arithmetic number, because the mean of its divisors is an integer number (28241322).

Almost surely, 2^103551503 is an apocalyptic number.

103551503 is a deficient number, since it is larger than the sum of its proper divisors (9413785).

103551503 is an equidigital number, since it uses as much as digits as its factorization.

103551503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9413784.

The product of its (nonzero) digits is 1125, while the sum is 23.

The square root of 103551503 is about 10176.0258942281. The cubic root of 103551503 is about 469.5899592588.

The spelling of 103551503 in words is "one hundred three million, five hundred fifty-one thousand, five hundred three".