10609509 has 16 divisors (see below), whose sum is σ = 14860800. Its totient is φ = 6719856.

The previous prime is 10609493. The next prime is 10609537. The reversal of 10609509 is 90590601.

10609509 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10609509 - 2⁴ = 10609493 is a prime.

It is a super-2 number, since 2×10609509² = 225123362442162, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10609579) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11922 + ... + 12780.

It is an arithmetic number, because the mean of its divisors is an integer number (928800).

Almost surely, 2^10609509 is an apocalyptic number.

It is an amenable number.

10609509 is a deficient number, since it is larger than the sum of its proper divisors (4251291).

10609509 is a wasteful number, since it uses less digits than its factorization.

10609509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064.

The product of its (nonzero) digits is 2430, while the sum is 30.

The square root of 10609509 is about 3257.2241249260. The cubic root of 10609509 is about 219.7345904050.

The spelling of 10609509 in words is "ten million, six hundred nine thousand, five hundred nine".