10212609 has 32 divisors (see below), whose sum is σ = 15667200. Its totient is φ = 5860800.

The previous prime is 10212599. The next prime is 10212613. The reversal of 10212609 is 90621201.

10212609 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10212609 - 2⁴ = 10212593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10212619) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 68467 + ... + 68615.

It is an arithmetic number, because the mean of its divisors is an integer number (489600).

Almost surely, 2^10212609 is an apocalyptic number.

It is an amenable number.

10212609 is a deficient number, since it is larger than the sum of its proper divisors (5454591).

10212609 is a wasteful number, since it uses less digits than its factorization.

10212609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 10212609 is about 3195.7172903747. The cubic root of 10212609 is about 216.9596150433.

The spelling of 10212609 in words is "ten million, two hundred twelve thousand, six hundred nine".