102403216 has 10 divisors (see below), whose sum is σ = 198406262. Its totient is φ = 51201600.

The previous prime is 102403183. The next prime is 102403219. The reversal of 102403216 is 612304201.

It can be written as a sum of positive squares in only one way, i.e., 98010000 + 4393216 = 9900^2 + 2096^2 .

It is a junction number, because it is equal to n+sod(n) for n = 102403193 and 102403202.

It is not an unprimeable number, because it can be changed into a prime (102403219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3200085 + ... + 3200116.

Almost surely, 2^102403216 is an apocalyptic number.

102403216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

102403216 is a deficient number, since it is larger than the sum of its proper divisors (96003046).

102403216 is an equidigital number, since it uses as much as digits as its factorization.

102403216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6400209 (or 6400203 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 102403216 is about 10119.4474157436. The cubic root of 102403216 is about 467.8477357925.

Adding to 102403216 its reverse (612304201), we get a palindrome (714707417).

It can be divided in two parts, 10240 and 3216, that added together give a square (13456 = 116²).

The spelling of 102403216 in words is "one hundred two million, four hundred three thousand, two hundred sixteen".