103642216 has 8 divisors (see below), whose sum is σ = 194329170. Its totient is φ = 51821104.

The previous prime is 103642213. The next prime is 103642237. The reversal of 103642216 is 612246301.

It can be written as a sum of positive squares in only one way, i.e., 99002500 + 4639716 = 9950^2 + 2154^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×103642216³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (103642211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6477631 + ... + 6477646.

Almost surely, 2^103642216 is an apocalyptic number.

It is an amenable number.

103642216 is a deficient number, since it is larger than the sum of its proper divisors (90686954).

103642216 is a wasteful number, since it uses less digits than its factorization.

103642216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12955283 (or 12955279 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 103642216 is about 10180.4821103914. The cubic root of 103642216 is about 469.7270423526.

Adding to 103642216 its reverse (612246301), we get a palindrome (715888517).

The spelling of 103642216 in words is "one hundred three million, six hundred forty-two thousand, two hundred sixteen".