105503216 has 40 divisors (see below), whose sum is σ = 251588064. Its totient is φ = 41736960.

The previous prime is 105503201. The next prime is 105503263. The reversal of 105503216 is 612305501.

It is a super-2 number, since 2×105503216² = 22261857172685312, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105503191 and 105503200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34775 + ... + 37686.

Almost surely, 2^105503216 is an apocalyptic number.

105503216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

105503216 is an abundant number, since it is smaller than the sum of its proper divisors (146084848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

105503216 is a wasteful number, since it uses less digits than its factorization.

105503216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72489 (or 72483 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 105503216 is about 10271.4758433246. The cubic root of 105503216 is about 472.5218541071.

Adding to 105503216 its reverse (612305501), we get a palindrome (717808717).

The spelling of 105503216 in words is "one hundred five million, five hundred three thousand, two hundred sixteen".