105401216 has 16 divisors (see below), whose sum is σ = 209979240. Its totient is φ = 52700544.

The previous prime is 105401137. The next prime is 105401281. The reversal of 105401216 is 612104501.

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×105401216² = 22218832668557312, which contains 22 as substring.

It is a nialpdrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 411596 + ... + 411851.

Almost surely, 2^105401216 is an apocalyptic number.

105401216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

105401216 is a deficient number, since it is larger than the sum of its proper divisors (104578024).

105401216 is an frugal number, since it uses more digits than its factorization.

105401216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 823461 (or 823449 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 105401216 is about 10266.5094360255. The cubic root of 105401216 is about 472.3695277245.

Adding to 105401216 its reverse (612104501), we get a palindrome (717505717).

The spelling of 105401216 in words is "one hundred five million, four hundred one thousand, two hundred sixteen".