100422503 has 4 divisors (see below), whose sum is σ = 102559200. Its totient is φ = 98285808.

The previous prime is 100422473. The next prime is 100422541. The reversal of 100422503 is 305224001.

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 100422503 - 2²⁰ = 99373927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100422103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1068278 + ... + 1068371.

It is an arithmetic number, because the mean of its divisors is an integer number (25639800).

Almost surely, 2^100422503 is an apocalyptic number.

100422503 is a deficient number, since it is larger than the sum of its proper divisors (2136697).

100422503 is an equidigital number, since it uses as much as digits as its factorization.

100422503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2136696.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 100422503 is about 10021.1028834156. The cubic root of 100422503 is about 464.8116599580.

Adding to 100422503 its reverse (305224001), we get a palindrome (405646504).

The spelling of 100422503 in words is "one hundred million, four hundred twenty-two thousand, five hundred three".