10320261 has 24 divisors (see below), whose sum is σ = 16457280. Its totient is φ = 5634816.

The previous prime is 10320253. The next prime is 10320263. The reversal of 10320261 is 16202301.

It is not a de Polignac number, because 10320261 - 2³ = 10320253 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10320261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10320263) 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 in 23 ways as a sum of consecutive naturals, for example, 10645 + ... + 11573.

It is an arithmetic number, because the mean of its divisors is an integer number (685720).

Almost surely, 2^10320261 is an apocalyptic number.

It is an amenable number.

10320261 is a deficient number, since it is larger than the sum of its proper divisors (6137019).

10320261 is an equidigital number, since it uses as much as digits as its factorization.

10320261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985 (or 962 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 10320261 is about 3212.5163034606. The cubic root of 10320261 is about 217.7192820838.

Adding to 10320261 its reverse (16202301), we get a palindrome (26522562).

The spelling of 10320261 in words is "ten million, three hundred twenty thousand, two hundred sixty-one".