10260661 has 4 divisors (see below), whose sum is σ = 10401292. Its totient is φ = 10120032.

The previous prime is 10260643. The next prime is 10260683. The reversal of 10260661 is 16606201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7873636 + 2387025 = 2806^2 + 1545^2 .

It is a cyclic number.

It is not a de Polignac number, because 10260661 - 2⁹ = 10260149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10260611) 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 3 ways as a sum of consecutive naturals, for example, 70206 + ... + 70351.

It is an arithmetic number, because the mean of its divisors is an integer number (2600323).

Almost surely, 2^10260661 is an apocalyptic number.

It is an amenable number.

10260661 is a deficient number, since it is larger than the sum of its proper divisors (140631).

10260661 is an equidigital number, since it uses as much as digits as its factorization.

10260661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140630.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 10260661 is about 3203.2266544845. The cubic root of 10260661 is about 217.2993596031.

Adding to 10260661 its reverse (16606201), we get a palindrome (26866862).

The spelling of 10260661 in words is "ten million, two hundred sixty thousand, six hundred sixty-one".