100503207 has 32 divisors (see below), whose sum is σ = 170726400. Its totient is φ = 57240864.

The previous prime is 100503199. The next prime is 100503223. The reversal of 100503207 is 702305001.

It is not a de Polignac number, because 100503207 - 2³ = 100503199 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100503207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100503257) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72838 + ... + 74204.

It is an arithmetic number, because the mean of its divisors is an integer number (5335200).

Almost surely, 2^100503207 is an apocalyptic number.

100503207 is a deficient number, since it is larger than the sum of its proper divisors (70223193).

100503207 is a wasteful number, since it uses less digits than its factorization.

100503207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1772 (or 1766 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 100503207 is about 10025.1287772278. The cubic root of 100503207 is about 464.9361410745.

Adding to 100503207 its reverse (702305001), we get a palindrome (802808208).

The spelling of 100503207 in words is "one hundred million, five hundred three thousand, two hundred seven".