103212065 has 16 divisors (see below), whose sum is σ = 135328320. Its totient is φ = 74944320.

The previous prime is 103212059. The next prime is 103212071. The reversal of 103212065 is 560212301.

It is an interprime number because it is at equal distance from previous prime (103212059) and next prime (103212071).

It is not a de Polignac number, because 103212065 - 2¹⁰ = 103211041 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48851 + ... + 50919.

It is an arithmetic number, because the mean of its divisors is an integer number (8458020).

Almost surely, 2^103212065 is an apocalyptic number.

It is an amenable number.

103212065 is a deficient number, since it is larger than the sum of its proper divisors (32116255).

103212065 is a wasteful number, since it uses less digits than its factorization.

103212065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2992.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 103212065 is about 10159.3338856443. Note that the first 3 decimals coincide. The cubic root of 103212065 is about 469.0762980844.

Adding to 103212065 its reverse (560212301), we get a palindrome (663424366).

The spelling of 103212065 in words is "one hundred three million, two hundred twelve thousand, sixty-five".